diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/README.md b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/README.md
new file mode 100644
index 000000000000..f21ef0360746
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/README.md
@@ -0,0 +1,331 @@
+
+
+# dleftPadCircular
+
+> Prepend elements to a double-precision floating-point strided array by circularly repeating existing elements.
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var dleftPadCircular = require( '@stdlib/blas/ext/base/dleft-pad-circular' );
+```
+
+#### dleftPadCircular( N, k, x, strideX, y, strideY )
+
+Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+dleftPadCircular( x.length, 2, x, 1, y, 1 );
+// y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements in `x`.
+- **k**: number of elements to pad.
+- **x**: input [`Float64Array`][@stdlib/array/float64].
+- **strideX**: stride length for `x`.
+- **y**: output [`Float64Array`][@stdlib/array/float64]. Must contain `N + max(0,k)` indexed elements.
+- **strideY**: stride length for `y`.
+
+The `N` and stride parameters determine which elements in the strided arrays are accessed at runtime. For example, to pad every other element in `x`:
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+dleftPadCircular( 3, 2, x, 2, y, 1 );
+// y => [ 3.0, 5.0, 1.0, 3.0, 5.0 ]
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+// Initial arrays...
+var x0 = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var y0 = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+// Create offset views...
+var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+var y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*2 ); // start at 3rd element
+
+dleftPadCircular( 3, 2, x1, 2, y1, 1 );
+// y0 => [ 0.0, 0.0, 4.0, 6.0, 2.0, 4.0, 6.0 ]
+```
+
+#### dleftPadCircular.ndarray( N, k, x, strideX, offsetX, y, strideY, offsetY )
+
+Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements using alternative indexing semantics.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, 0 );
+// y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+```
+
+The function has the following additional parameters:
+
+- **offsetX**: starting index for `x`.
+- **offsetY**: starting index for `y`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameters support indexing semantics based on starting indices. For example, to pad every other element in the strided input array starting from the second element and to store in the last `N + k` elements of the strided output array starting from the last element:
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+dleftPadCircular.ndarray( 3, 2, x, 2, 1, y, -1, y.length-1 );
+// y => [ 0.0, 0.0, 6.0, 4.0, 2.0, 6.0, 4.0 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- If `N <= 0`, both functions return `y` unchanged.
+- If `k < 0`, both functions clamp `k` to `0`, such that indexed elements in `x` are copied to `y` without padding.
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dleftPadCircular = require( '@stdlib/blas/ext/base/dleft-pad-circular' );
+
+var x = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var k = 5;
+
+var y = new Float64Array( x.length + k );
+console.log( y );
+
+dleftPadCircular( x.length, k, x, 1, y, 1 );
+console.log( y );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+#include "stdlib/blas/ext/base/dleft_pad_circular.h"
+```
+
+#### stdlib_strided_dleft_pad_circular( N, k, \*X, strideX, \*Y, strideY )
+
+Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements.
+
+```c
+const double x[] = { 1.0, 2.0, 3.0 };
+double y[] = { 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+stdlib_strided_dleft_pad_circular( 3, 2, x, 1, y, 1 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements in `X`.
+- **k**: `[in] CBLAS_INT` number of elements to pad.
+- **X**: `[in] double*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length for `X`.
+- **Y**: `[out] double*` output array.
+- **strideY**: `[in] CBLAS_INT` stride length for `Y`.
+
+```c
+void stdlib_strided_dleft_pad_circular( const CBLAS_INT N, CBLAS_INT k, const double *X, const CBLAS_INT strideX, double *Y, const CBLAS_INT strideY );
+```
+
+
+
+#### stdlib_strided_dleft_pad_circular_ndarray( N, k, \*X, strideX, offsetX, \*Y, strideY, offsetY )
+
+
+
+Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements using alternative indexing semantics.
+
+```c
+const double x[] = { 1.0, 2.0, 3.0 };
+double y[] = { 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+stdlib_strided_dleft_pad_circular_ndarray( 3, 2, x, 1, 0, y, 1, 0 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements in `X`.
+- **k**: `[in] CBLAS_INT` number of elements to pad.
+- **X**: `[in] double*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length for `X`.
+- **offsetX**: `[in] CBLAS_INT` starting index for `X`.
+- **Y**: `[out] double*` output array.
+- **strideY**: `[in] CBLAS_INT` stride length for `Y`.
+- **offsetY**: `[in] CBLAS_INT` starting index for `Y`.
+
+```c
+void stdlib_strided_dleft_pad_circular_ndarray( const CBLAS_INT N, CBLAS_INT k, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, double *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+#include "stdlib/blas/ext/base/dleft_pad_circular.h"
+#include
+
+int main( void ) {
+ // Create strided arrays:
+ const double x[] = { 1.0, 2.0, 3.0 };
+ double y[] = { 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+ // Specify the number of indexed elements:
+ const int N = 3;
+
+ // Specify the number of elements to pad:
+ const int k = 2;
+
+ // Specify stride lengths:
+ const int strideX = 1;
+ const int strideY = 1;
+
+ // Prepend elements:
+ stdlib_strided_dleft_pad_circular( N, k, x, strideX, y, strideY );
+
+ // Print the result:
+ for ( int i = 0; i < 5; i++ ) {
+ printf( "y[ %d ] = %lf\n", i, y[ i ] );
+ }
+}
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[@stdlib/array/float64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/float64
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.js
new file mode 100644
index 000000000000..747648c26614
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.js
@@ -0,0 +1,106 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var zeros = require( '@stdlib/array/zeros' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var dleftPadCircular = require( './../lib/dleft_pad_circular.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var y = zeros( len * 2, options.dtype );
+ var x = uniform( len, -100.0, 100.0, options );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ x[ 0 ] += 1.0;
+ v = dleftPadCircular( x.length, len, x, 1, y, 1 );
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..8df98fd8e7f1
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.native.js
@@ -0,0 +1,111 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var zeros = require( '@stdlib/array/zeros' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var dleftPadCircular = tryRequire( resolve( __dirname, './../lib/dleft_pad_circular.native.js' ) );
+var opts = {
+ 'skip': ( dleftPadCircular instanceof Error )
+};
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var y = zeros( len * 2, options.dtype );
+ var x = uniform( len, -100.0, 100.0, options );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ x[ 0 ] += 1.0;
+ v = dleftPadCircular( x.length, len, x, 1, y, 1 );
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..07fcb3855be4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.ndarray.js
@@ -0,0 +1,106 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var zeros = require( '@stdlib/array/zeros' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var dleftPadCircular = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var y = zeros( len * 2, options.dtype );
+ var x = uniform( len, -100.0, 100.0, options );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ x[ 0 ] += 1.0;
+ v = dleftPadCircular( x.length, len, x, 1, 0, y, 1, 0 );
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:ndarray:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.ndarray.native.js
new file mode 100644
index 000000000000..25da2026ef3c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/benchmark.ndarray.native.js
@@ -0,0 +1,111 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var zeros = require( '@stdlib/array/zeros' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var dleftPadCircular = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( dleftPadCircular instanceof Error )
+};
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var y = zeros( len * 2, options.dtype );
+ var x = uniform( len, -100.0, 100.0, options );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ x[ 0 ] += 1.0;
+ v = dleftPadCircular( x.length, len, x, 1, 0, y, 1, 0 );
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( v[ i % ( len * 2 ) ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/c/Makefile
new file mode 100644
index 000000000000..0756dc7da20a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.length.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/c/benchmark.length.c
new file mode 100644
index 000000000000..cf2e768dcf36
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/benchmark/c/benchmark.length.c
@@ -0,0 +1,209 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dleft_pad_circular.h"
+#include
+#include
+#include
+#include
+#include
+
+#define NAME "dleft_pad_circular"
+#define ITERATIONS 1000000
+#define REPEATS 3
+#define MIN 1
+#define MAX 6
+
+/**
+* Prints the TAP version.
+*/
+static void print_version( void ) {
+ printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total total number of tests
+* @param passing total number of passing tests
+*/
+static void print_summary( int total, int passing ) {
+ printf( "#\n" );
+ printf( "1..%d\n", total ); // TAP plan
+ printf( "# total %d\n", total );
+ printf( "# pass %d\n", passing );
+ printf( "#\n" );
+ printf( "# ok\n" );
+}
+
+/**
+* Prints benchmarks results.
+*
+* @param iterations number of iterations
+* @param elapsed elapsed time in seconds
+*/
+static void print_results( int iterations, double elapsed ) {
+ double rate = (double)iterations / elapsed;
+ printf( " ---\n" );
+ printf( " iterations: %d\n", iterations );
+ printf( " elapsed: %0.9f\n", elapsed );
+ printf( " rate: %0.9f\n", rate );
+ printf( " ...\n" );
+}
+
+/**
+* Returns a clock time.
+*
+* @return clock time
+*/
+static double tic( void ) {
+ struct timeval now;
+ gettimeofday( &now, NULL );
+ return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [0,1).
+*
+* @return random number
+*/
+static double rand_double( void ) {
+ int r = rand();
+ return (double)r / ( (double)RAND_MAX + 1.0 );
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark1( int iterations, int len ) {
+ double elapsed;
+ double *y;
+ double *x;
+ double t;
+ int i;
+
+ x = (double *) malloc( len * sizeof( double ) );
+ y = (double *) malloc( len * 2 * sizeof( double ) );
+ for ( i = 0; i < len; i++ ) {
+ x[ i ] = ( rand_double() * 20000.0 ) - 10000.0;
+ }
+ for ( i = 0; i < len*2; i++ ) {
+ y[ i ] = 0.0;
+ }
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ x[ 0 ] += 1.0;
+ stdlib_strided_dleft_pad_circular( len, len, x, 1, y, 1 );
+ if ( y[ 0 ] != y[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( y[ (len*2)-1 ] != y[ (len*2)-1 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( x );
+ free( y );
+ return elapsed;
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark2( int iterations, int len ) {
+ double elapsed;
+ double *y;
+ double *x;
+ double t;
+ int i;
+
+ x = (double *) malloc( len * sizeof( double ) );
+ y = (double *) malloc( len * 2 * sizeof( double ) );
+ for ( i = 0; i < len; i++ ) {
+ x[ i ] = ( rand_double() * 20000.0 ) - 10000.0;
+ }
+ for ( i = 0; i < len*2; i++ ) {
+ y[ i ] = 0.0;
+ }
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ x[ 0 ] += 1.0;
+ stdlib_strided_dleft_pad_circular_ndarray( len, len, x, 1, 0, y, 1, 0 );
+ if ( y[ 0 ] != y[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( y[ (len*2)-1 ] != y[ (len*2)-1 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( x );
+ free( y );
+ return elapsed;
+}
+
+/**
+* Main execution sequence.
+*/
+int main( void ) {
+ double elapsed;
+ int count;
+ int iter;
+ int len;
+ int i;
+ int j;
+
+ // Use the current time to seed the random number generator:
+ srand( time( NULL ) );
+
+ print_version();
+ count = 0;
+ for ( i = MIN; i <= MAX; i++ ) {
+ len = pow( 10, i );
+ iter = ITERATIONS / pow( 10, i-1 );
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::%s:len=%d\n", NAME, len );
+ elapsed = benchmark1( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ }
+ for ( i = MIN; i <= MAX; i++ ) {
+ len = pow( 10, i );
+ iter = ITERATIONS / pow( 10, i-1 );
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::%s:ndarray:len=%d\n", NAME, len );
+ elapsed = benchmark2( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ }
+ print_summary( count, count );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/binding.gyp
new file mode 100644
index 000000000000..0d6508a12e99
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/binding.gyp
@@ -0,0 +1,170 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # List of files to include in this file:
+ 'includes': [
+ './include.gypi',
+ ],
+
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Target name should match the add-on export name:
+ 'addon_target_name%': 'addon',
+
+ # Set variables based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="win"',
+ {
+ # Define the object file suffix:
+ 'obj': 'obj',
+ },
+ {
+ # Define the object file suffix:
+ 'obj': 'o',
+ }
+ ], # end condition (OS=="win")
+ ], # end conditions
+ }, # end variables
+
+ # Define compile targets:
+ 'targets': [
+
+ # Target to generate an add-on:
+ {
+ # The target name should match the add-on export name:
+ 'target_name': '<(addon_target_name)',
+
+ # Define dependencies:
+ 'dependencies': [],
+
+ # Define directories which contain relevant include headers:
+ 'include_dirs': [
+ # Local include directory:
+ '<@(include_dirs)',
+ ],
+
+ # List of source files:
+ 'sources': [
+ '<@(src_files)',
+ ],
+
+ # Settings which should be applied when a target's object files are used as linker input:
+ 'link_settings': {
+ # Define libraries:
+ 'libraries': [
+ '<@(libraries)',
+ ],
+
+ # Define library directories:
+ 'library_dirs': [
+ '<@(library_dirs)',
+ ],
+ },
+
+ # C/C++ compiler flags:
+ 'cflags': [
+ # Enable commonly used warning options:
+ '-Wall',
+
+ # Aggressive optimization:
+ '-O3',
+ ],
+
+ # C specific compiler flags:
+ 'cflags_c': [
+ # Specify the C standard to which a program is expected to conform:
+ '-std=c99',
+ ],
+
+ # C++ specific compiler flags:
+ 'cflags_cpp': [
+ # Specify the C++ standard to which a program is expected to conform:
+ '-std=c++11',
+ ],
+
+ # Linker flags:
+ 'ldflags': [],
+
+ # Apply conditions based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="mac"',
+ {
+ # Linker flags:
+ 'ldflags': [
+ '-undefined dynamic_lookup',
+ '-Wl,-no-pie',
+ '-Wl,-search_paths_first',
+ ],
+ },
+ ], # end condition (OS=="mac")
+ [
+ 'OS!="win"',
+ {
+ # C/C++ flags:
+ 'cflags': [
+ # Generate platform-independent code:
+ '-fPIC',
+ ],
+ },
+ ], # end condition (OS!="win")
+ ], # end conditions
+ }, # end target <(addon_target_name)
+
+ # Target to copy a generated add-on to a standard location:
+ {
+ 'target_name': 'copy_addon',
+
+ # Declare that the output of this target is not linked:
+ 'type': 'none',
+
+ # Define dependencies:
+ 'dependencies': [
+ # Require that the add-on be generated before building this target:
+ '<(addon_target_name)',
+ ],
+
+ # Define a list of actions:
+ 'actions': [
+ {
+ 'action_name': 'copy_addon',
+ 'message': 'Copying addon...',
+
+ # Explicitly list the inputs in the command-line invocation below:
+ 'inputs': [],
+
+ # Declare the expected outputs:
+ 'outputs': [
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+
+ # Define the command-line invocation:
+ 'action': [
+ 'cp',
+ '<(PRODUCT_DIR)/<(addon_target_name).node',
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+ },
+ ], # end actions
+ }, # end target copy_addon
+ ], # end targets
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/repl.txt
new file mode 100644
index 000000000000..781bd50bbc4e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/repl.txt
@@ -0,0 +1,122 @@
+
+{{alias}}( N, k, x, strideX, y, strideY )
+ Prepends elements to a double-precision floating-point strided array by
+ circularly repeating existing elements.
+
+ The `N` and stride parameters determine which elements in the strided arrays
+ are accessed at runtime.
+
+ Indexing is relative to the first index. To introduce an offset, use a typed
+ array view.
+
+ If `N <= 0`, the function returns `y` unchanged.
+
+ If `k < 0`, the function clamps `k` to `0`, such that indexed elements in
+ `x` are copied to `y` without padding.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements in `x`.
+
+ k: integer
+ Number of elements to pad.
+
+ x: Float64Array
+ Input array.
+
+ strideX: integer
+ Stride length for `x`.
+
+ y: Float64Array
+ Output array. Must contain `N + max(0,k)` indexed elements.
+
+ strideY: integer
+ Stride length for `y`.
+
+ Returns
+ -------
+ y: Float64Array
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0 ] );
+ > var y = new {{alias:@stdlib/array/float64}}( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+ > {{alias}}( x.length, 2, x, 1, y, 1 )
+ [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+
+ // Using `N` and stride parameters:
+ > x = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ > y = new {{alias:@stdlib/array/float64}}( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+ > {{alias}}( 3, 2, x, 2, y, 1 )
+ [ 3.0, 5.0, 1.0, 3.0, 5.0 ]
+
+ // Using view offsets:
+ > var x0 = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ > var y0 = new {{alias:@stdlib/array/float64}}( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+ > var x1 = new {{alias:@stdlib/array/float64}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+ > var y1 = new {{alias:@stdlib/array/float64}}( y0.buffer, y0.BYTES_PER_ELEMENT*2 );
+ > {{alias}}( 3, 2, x1, 2, y1, 1 )
+ [ 4.0, 6.0, 2.0, 4.0, 6.0 ]
+ > y0
+ [ 0.0, 0.0, 4.0, 6.0, 2.0, 4.0, 6.0 ]
+
+
+{{alias}}.ndarray( N, k, x, strideX, offsetX, y, strideY, offsetY )
+ Prepends elements to a double-precision floating-point strided array by
+ circularly repeating existing elements using alternative indexing semantics.
+
+ While typed array views mandate a view offset based on the underlying
+ buffer, the offset parameters support indexing semantics based on starting
+ indices.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements in `x`.
+
+ k: integer
+ Number of elements to pad.
+
+ x: Float64Array
+ Input array.
+
+ strideX: integer
+ Stride length for `x`.
+
+ offsetX: integer
+ Starting index for `x`.
+
+ y: Float64Array
+ Output array. Must contain `N + max(0,k)` indexed elements.
+
+ strideY: integer
+ Stride length for `y`.
+
+ offsetY: integer
+ Starting index for `y`.
+
+ Returns
+ -------
+ y: Float64Array
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0 ] );
+ > var y = new {{alias:@stdlib/array/float64}}( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+ > {{alias}}.ndarray( x.length, 2, x, 1, 0, y, 1, 0 )
+ [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+
+ // Advanced indexing:
+ > x = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+ > y = new {{alias:@stdlib/array/float64}}( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+ > {{alias}}.ndarray( 3, 2, x, 2, 1, y, -1, y.length-1 )
+ [ 0.0, 0.0, 6.0, 4.0, 2.0, 6.0, 4.0 ]
+
+ See Also
+ --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/types/index.d.ts
new file mode 100644
index 000000000000..5a18746f49f7
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/types/index.d.ts
@@ -0,0 +1,106 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Interface describing `dleftPadCircular`.
+*/
+interface Routine {
+ /**
+ * Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements.
+ *
+ * @param N - number of indexed elements in `x`
+ * @param k - number of elements to pad
+ * @param x - input array
+ * @param strideX - stride length for `x`
+ * @param y - output array
+ * @param strideY - stride length for `y`
+ * @returns output array
+ *
+ * @example
+ * var Float64Array = require( '@stdlib/array/float64' );
+ *
+ * var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ * var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+ *
+ * dleftPadCircular( x.length, 2, x, 1, y, 1 );
+ * // y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+ */
+ ( N: number, k: number, x: Float64Array, strideX: number, y: Float64Array, strideY: number ): Float64Array;
+
+ /**
+ * Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements using alternative indexing semantics.
+ *
+ * @param N - number of indexed elements in `x`
+ * @param k - number of elements to pad
+ * @param x - input array
+ * @param strideX - stride length for `x`
+ * @param offsetX - starting index for `x`
+ * @param y - output array
+ * @param strideY - stride length for `y`
+ * @param offsetY - starting index for `y`
+ * @returns output array
+ *
+ * @example
+ * var Float64Array = require( '@stdlib/array/float64' );
+ *
+ * var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ * var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+ *
+ * dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, 0 );
+ * // y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+ */
+ ndarray( N: number, k: number, x: Float64Array, strideX: number, offsetX: number, y: Float64Array, strideY: number, offsetY: number ): Float64Array;
+}
+
+/**
+* Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements.
+*
+* @param N - number of indexed elements in `x`
+* @param k - number of elements to pad
+* @param x - input array
+* @param strideX - stride length for `x`
+* @param y - output array
+* @param strideY - stride length for `y`
+* @returns output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+*
+* dleftPadCircular( x.length, 2, x, 1, y, 1 );
+* // y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+*
+* dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, 0 );
+* // y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*/
+declare var dleftPadCircular: Routine;
+
+
+// EXPORTS //
+
+export = dleftPadCircular;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/types/test.ts
new file mode 100644
index 000000000000..499a920b05fa
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/docs/types/test.ts
@@ -0,0 +1,270 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import dleftPadCircular = require( './index' );
+
+
+// TESTS //
+
+// The function returns a Float64Array...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular( x.length, 2, x, 1, y, 1 ); // $ExpectType Float64Array
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular( '10', 2, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( true, 2, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( false, 2, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( null, 2, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( undefined, 2, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( [], 2, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( {}, 2, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( ( x: number ): number => x, 2, x, 1, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular( x.length, '10', x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, true, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, false, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, null, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, undefined, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, [], x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, {}, x, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, ( x: number ): number => x, x, 1, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a Float64Array...
+{
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular( 10, 2, 10, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( 10, 2, true, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( 10, 2, false, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( 10, 2, null, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( 10, 2, undefined, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( 10, 2, {}, 1, y, 1 ); // $ExpectError
+ dleftPadCircular( 10, 2, ( x: number ): number => x, 1, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular( x.length, 2, x, '10', y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, true, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, false, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, null, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, undefined, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, [], y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, {}, y, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, ( x: number ): number => x, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a Float64Array...
+{
+ const x = new Float64Array( 10 );
+
+ dleftPadCircular( x.length, 2, x, 1, 10, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, true, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, false, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, null, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, undefined, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, {}, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular( x.length, 2, x, 1, y, '10' ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, true ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, false ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, null ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, undefined ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, [] ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, {} ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular(); // $ExpectError
+ dleftPadCircular( x.length ); // $ExpectError
+ dleftPadCircular( x.length, 2 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1 ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y ); // $ExpectError
+ dleftPadCircular( x.length, 2, x, 1, y, 1, {} ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a Float64Array...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, 0 ); // $ExpectType Float64Array
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( '10', 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( true, 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( false, 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( null, 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( undefined, 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( [], 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( {}, 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( ( x: number ): number => x, 2, x, 1, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( x.length, '10', x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, true, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, false, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, null, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, undefined, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, [], x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, {}, x, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, ( x: number ): number => x, x, 1, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a Float64Array...
+{
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( 10, 2, 10, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( 10, 2, true, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( 10, 2, false, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( 10, 2, null, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( 10, 2, undefined, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( 10, 2, {}, 1, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( 10, 2, ( x: number ): number => x, 1, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( x.length, 2, x, '10', 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, true, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, false, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, null, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, undefined, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, [], 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, {}, 0, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, ( x: number ): number => x, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( x.length, 2, x, 1, '10', y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, true, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, false, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, null, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, undefined, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, [], y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, {}, y, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, ( x: number ): number => x, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a Float64Array...
+{
+ const x = new Float64Array( 10 );
+
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, 10, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, true, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, false, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, null, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, undefined, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, {}, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a seventh argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, '10', 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, true, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, false, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, null, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, undefined, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, [], 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, {}, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, '10' ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, true ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, false ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, null ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, undefined ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, [] ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, {} ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 12 );
+
+ dleftPadCircular.ndarray(); // $ExpectError
+ dleftPadCircular.ndarray( x.length ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1 ); // $ExpectError
+ dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, 0, {} ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/c/Makefile
new file mode 100644
index 000000000000..c8f8e9a1517b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/c/example.c
new file mode 100644
index 000000000000..0f99aa244721
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/c/example.c
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dleft_pad_circular.h"
+#include
+
+int main( void ) {
+ // Create strided arrays:
+ const double x[] = { 1.0, 2.0, 3.0 };
+ double y[] = { 0.0, 0.0, 0.0, 0.0, 0.0 };
+
+ // Specify the number of indexed elements:
+ const int N = 3;
+
+ // Specify the number of elements to pad:
+ const int k = 2;
+
+ // Specify stride lengths:
+ const int strideX = 1;
+ const int strideY = 1;
+
+ // Prepend elements:
+ stdlib_strided_dleft_pad_circular( N, k, x, strideX, y, strideY );
+
+ // Print the result:
+ for ( int i = 0; i < 5; i++ ) {
+ printf( "y[ %d ] = %lf\n", i, y[ i ] );
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/index.js
new file mode 100644
index 000000000000..fd3c21941e10
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/examples/index.js
@@ -0,0 +1,36 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dleftPadCircular = require( './../lib' );
+
+var x = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var k = 5;
+
+var y = new Float64Array( x.length + k );
+console.log( y );
+
+dleftPadCircular( x.length, k, x, 1, y, 1 );
+console.log( y );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/include.gypi
new file mode 100644
index 000000000000..bee8d41a2caf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/include.gypi
@@ -0,0 +1,53 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Source directory:
+ 'src_dir': './src',
+
+ # Include directories:
+ 'include_dirs': [
+ '[ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*/
+function dleftPadCircular( N, k, x, strideX, y, strideY ) {
+ var ox;
+ var oy;
+
+ if ( k < 0 ) {
+ k = 0;
+ }
+ ox = stride2offset( N, strideX );
+ oy = stride2offset( N + k, strideY );
+ return ndarray( N, k, x, strideX, ox, y, strideY, oy );
+}
+
+
+// EXPORTS //
+
+module.exports = dleftPadCircular;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/dleft_pad_circular.native.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/dleft_pad_circular.native.js
new file mode 100644
index 000000000000..bedfeb09301e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/dleft_pad_circular.native.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements.
+*
+* @param {PositiveInteger} N - number of indexed elements in `x`
+* @param {integer} k - number of elements to pad
+* @param {Float64Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {Float64Array} y - output array
+* @param {integer} strideY - stride length for `y`
+* @returns {Float64Array} output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+*
+* var v = dleftPadCircular( x.length, 2, x, 1, y, 1 );
+* // returns [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*/
+function dleftPadCircular( N, k, x, strideX, y, strideY ) {
+ addon( N, k, x, strideX, y, strideY );
+ return y;
+}
+
+
+// EXPORTS //
+
+module.exports = dleftPadCircular;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/index.js
new file mode 100644
index 000000000000..b0da92a63bdd
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/index.js
@@ -0,0 +1,70 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Prepend elements to a double-precision floating-point strided array by circularly repeating existing elements.
+*
+* @module @stdlib/blas/ext/base/dleft-pad-circular
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var dleftPadCircular = require( '@stdlib/blas/ext/base/dleft-pad-circular' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+*
+* dleftPadCircular( x.length, 2, x, 1, y, 1 );
+* // y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var dleftPadCircular = require( '@stdlib/blas/ext/base/dleft-pad-circular' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+*
+* dleftPadCircular.ndarray( x.length, 2, x, 1, 0, y, 1, 0 );
+* // y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*/
+
+// MODULES //
+
+var join = require( 'path' ).join;
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isError = require( '@stdlib/assert/is-error' );
+var main = require( './main.js' );
+
+
+// MAIN //
+
+var dleftPadCircular;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+ dleftPadCircular = main;
+} else {
+ dleftPadCircular = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = dleftPadCircular;
+
+// exports: { "ndarray": "dleftPadCircular.ndarray" }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/main.js
new file mode 100644
index 000000000000..5e3eaf30264f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var dleftPadCircular = require( './dleft_pad_circular.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( dleftPadCircular, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = dleftPadCircular;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/native.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/native.js
new file mode 100644
index 000000000000..b9c7e7cd9033
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/native.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var dleftPadCircular = require( './dleft_pad_circular.native.js' );
+var ndarray = require( './ndarray.native.js' );
+
+
+// MAIN //
+
+setReadOnly( dleftPadCircular, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = dleftPadCircular;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/ndarray.js
new file mode 100644
index 000000000000..18da02adebb9
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/ndarray.js
@@ -0,0 +1,83 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements.
+*
+* @param {PositiveInteger} N - number of indexed elements in `x`
+* @param {integer} k - number of elements to pad
+* @param {Float64Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {Float64Array} y - output array
+* @param {integer} strideY - stride length for `y`
+* @param {NonNegativeInteger} offsetY - starting index for `y`
+* @returns {Float64Array} output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+*
+* dleftPadCircular( 3, 2, x, 1, 0, y, 1, 0 );
+* // y => [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*/
+function dleftPadCircular( N, k, x, strideX, offsetX, y, strideY, offsetY ) {
+ var ix;
+ var iy;
+ var M;
+ var i;
+ var j;
+
+ if ( N <= 0 ) {
+ return y;
+ }
+ if ( k < 0 ) {
+ k = 0;
+ }
+ // Resolve the index of the first element in the left padding:
+ j = k % N;
+ if ( j > 0 ) {
+ j = N - j;
+ }
+ M = N + k;
+ ix = offsetX + ( j * strideX );
+ iy = offsetY;
+ for ( i = 0; i < M; i++ ) {
+ y[ iy ] = x[ ix ];
+ iy += strideY;
+ j += 1;
+ if ( j === N ) {
+ j = 0;
+ ix = offsetX;
+ } else {
+ ix += strideX;
+ }
+ }
+ return y;
+}
+
+
+// EXPORTS //
+
+module.exports = dleftPadCircular;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/ndarray.native.js
new file mode 100644
index 000000000000..717c9e0334eb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/lib/ndarray.native.js
@@ -0,0 +1,58 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements in `x`
+* @param {integer} k - number of elements to pad
+* @param {Float64Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {Float64Array} y - output array
+* @param {integer} strideY - stride length for `y`
+* @param {NonNegativeInteger} offsetY - starting index for `y`
+* @returns {Float64Array} output array
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+* var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+*
+* var v = dleftPadCircular( 3, 2, x, 1, 0, y, 1, 0 );
+* // returns [ 2.0, 3.0, 1.0, 2.0, 3.0 ]
+*/
+function dleftPadCircular( N, k, x, strideX, offsetX, y, strideY, offsetY ) {
+ addon.ndarray( N, k, x, strideX, offsetX, y, strideY, offsetY );
+ return y;
+}
+
+
+// EXPORTS //
+
+module.exports = dleftPadCircular;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/manifest.json b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/manifest.json
new file mode 100644
index 000000000000..2f3a082413bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/manifest.json
@@ -0,0 +1,78 @@
+{
+ "options": {
+ "task": "build"
+ },
+ "fields": [
+ {
+ "field": "src",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "include",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "libraries",
+ "resolve": false,
+ "relative": false
+ },
+ {
+ "field": "libpath",
+ "resolve": true,
+ "relative": false
+ }
+ ],
+ "confs": [
+ {
+ "task": "build",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/napi/export",
+ "@stdlib/napi/argv",
+ "@stdlib/napi/argv-int64",
+ "@stdlib/napi/argv-strided-float64array",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/blas/base/shared"
+ ]
+ },
+ {
+ "task": "benchmark",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/blas/base/shared"
+ ]
+ },
+ {
+ "task": "examples",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/blas/base/shared"
+ ]
+ }
+ ]
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/package.json b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/package.json
new file mode 100644
index 000000000000..f3148be43853
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/package.json
@@ -0,0 +1,78 @@
+{
+ "name": "@stdlib/blas/ext/base/dleft-pad-circular",
+ "version": "0.0.0",
+ "description": "Prepend elements to a double-precision floating-point strided array by circularly repeating existing elements.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "browser": "./lib/main.js",
+ "gypfile": true,
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "include": "./include",
+ "lib": "./lib",
+ "src": "./src",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdmath",
+ "mathematics",
+ "math",
+ "blas",
+ "extended",
+ "pad",
+ "leftpad",
+ "left",
+ "circular",
+ "repeat",
+ "strided",
+ "strided array",
+ "typed",
+ "array",
+ "float64",
+ "double",
+ "float64array"
+ ],
+ "__stdlib__": {
+ "wasm": false
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/Makefile
new file mode 100644
index 000000000000..2caf905cedbe
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+ $(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/addon.c
new file mode 100644
index 000000000000..c776844aa6d4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/addon.c
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dleft_pad_circular.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/napi/export.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_int64.h"
+#include "stdlib/napi/argv_strided_float64array.h"
+#include
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 6 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, k, argv, 1 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 );
+ STDLIB_NAPI_ARGV_INT64( env, strideY, argv, 5 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY( env, X, N, strideX, argv, 2 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY( env, Y, N+k, strideY, argv, 4 );
+ API_SUFFIX(stdlib_strided_dleft_pad_circular)( N, k, X, strideX, Y, strideY );
+ return NULL;
+}
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon_method( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 8 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, k, argv, 1 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 4 );
+ STDLIB_NAPI_ARGV_INT64( env, strideY, argv, 6 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetY, argv, 7 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY( env, X, N, strideX, argv, 2 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY( env, Y, N+k, strideY, argv, 5 );
+ API_SUFFIX(stdlib_strided_dleft_pad_circular_ndarray)( N, k, X, strideX, offsetX, Y, strideY, offsetY );
+ return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/main.c
new file mode 100644
index 000000000000..95ee1b3d47cf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/src/main.c
@@ -0,0 +1,89 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dleft_pad_circular.h"
+#include "stdlib/strided/base/stride2offset.h"
+#include "stdlib/blas/base/shared.h"
+
+/**
+* Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements.
+*
+* @param N number of indexed elements in X
+* @param k number of elements to pad
+* @param X input array
+* @param strideX stride length for X
+* @param Y output array
+* @param strideY stride length for Y
+*/
+void API_SUFFIX(stdlib_strided_dleft_pad_circular)( const CBLAS_INT N, CBLAS_INT k, const double *X, const CBLAS_INT strideX, double *Y, const CBLAS_INT strideY ) {
+ CBLAS_INT ox;
+ CBLAS_INT oy;
+
+ if ( k < 0 ) {
+ k = 0;
+ }
+ ox = stdlib_strided_stride2offset( N, strideX );
+ oy = stdlib_strided_stride2offset( N + k, strideY );
+ API_SUFFIX(stdlib_strided_dleft_pad_circular_ndarray)( N, k, X, strideX, ox, Y, strideY, oy );
+}
+
+/**
+* Prepends elements to a double-precision floating-point strided array by circularly repeating existing elements using alternative indexing semantics.
+*
+* @param N number of indexed elements in X
+* @param k number of elements to pad
+* @param X input array
+* @param strideX stride length for X
+* @param offsetX starting index for X
+* @param Y output array
+* @param strideY stride length for Y
+* @param offsetY starting index for Y
+*/
+void API_SUFFIX(stdlib_strided_dleft_pad_circular_ndarray)( const CBLAS_INT N, CBLAS_INT k, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, double *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY ) {
+ CBLAS_INT ix;
+ CBLAS_INT iy;
+ CBLAS_INT M;
+ CBLAS_INT i;
+ CBLAS_INT j;
+
+ if ( N <= 0 ) {
+ return;
+ }
+ if ( k < 0 ) {
+ k = 0;
+ }
+ // Resolve the index of the first element in the left padding:
+ j = k % N;
+ if ( j > 0 ) {
+ j = N - j;
+ }
+ M = N + k;
+ ix = offsetX + ( j * strideX );
+ iy = offsetY;
+ for ( i = 0; i < M; i++ ) {
+ Y[ iy ] = X[ ix ];
+ iy += strideY;
+ j += 1;
+ if ( j == N ) {
+ j = 0;
+ ix = offsetX;
+ } else {
+ ix += strideX;
+ }
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.dleft_pad_circular.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.dleft_pad_circular.js
new file mode 100644
index 000000000000..bf86114b7c7e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.dleft_pad_circular.js
@@ -0,0 +1,269 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dleftPadCircular = require( './../lib/dleft_pad_circular.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dleftPadCircular, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 6', function test( t ) {
+ t.strictEqual( dleftPadCircular.length, 6, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function prepends elements to a strided array by circularly repeating existing elements', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 6, x, 1, y, 1 );
+ expected = new Float64Array( [ 3.0, 4.0, 1.0, 2.0, 3.0, 4.0, 1.0, 2.0, 3.0, 4.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 2, x, 1, y, 1 );
+ expected = new Float64Array( [ 2.0, 3.0, 1.0, 2.0, 3.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 4, x, 1, y, 1 );
+ expected = new Float64Array( [ 1.0, 2.0, 1.0, 2.0, 1.0, 2.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var x;
+ var y;
+ var v;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ v = dleftPadCircular( x.length, 2, x, 1, y, 1 );
+
+ t.strictEqual( v, y, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `y` unchanged', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ expected = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ dleftPadCircular( -1, 2, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ dleftPadCircular( 0, 2, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter less than `0`, the function copies indexed elements in `x` to `y` without padding', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0 ] );
+
+ expected = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+
+ dleftPadCircular( x.length, -1, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, y, 1 );
+
+ expected = new Float64Array( [ 3.0, 5.0, 1.0, 3.0, 5.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0,
+ 0.0, // 0
+ 0.0,
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0
+ ]);
+
+ dleftPadCircular( 3, 2, x, 1, y, 2 );
+
+ expected = new Float64Array( [ 2.0, 0.0, 3.0, 0.0, 1.0, 0.0, 2.0, 0.0, 3.0, 0.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, -2, y, -1 );
+
+ expected = new Float64Array( [ 1.0, 3.0, 5.0, 1.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, y, -1 );
+
+ expected = new Float64Array( [ 5.0, 3.0, 1.0, 5.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports view offsets', function test( t ) {
+ var expected;
+ var x0;
+ var x1;
+ var y0;
+ var y1;
+
+ // Initial arrays...
+ x0 = new Float64Array([
+ 1.0,
+ 2.0, // 0
+ 3.0,
+ 4.0, // 1
+ 5.0,
+ 6.0 // 2
+ ]);
+ y0 = new Float64Array([
+ 0.0,
+ 0.0,
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ // Create offset views...
+ x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+ y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*2 ); // begin at 3rd element
+
+ dleftPadCircular( 3, 2, x1, 2, y1, 1 );
+ expected = new Float64Array( [ 0.0, 0.0, 4.0, 6.0, 2.0, 4.0, 6.0 ] );
+
+ t.deepEqual( y0, expected, 'returns expected value' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.dleft_pad_circular.native.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.dleft_pad_circular.native.js
new file mode 100644
index 000000000000..d6ad8f518d99
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.dleft_pad_circular.native.js
@@ -0,0 +1,278 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var Float64Array = require( '@stdlib/array/float64' );
+
+
+// VARIABLES //
+
+var dleftPadCircular = tryRequire( resolve( __dirname, './../lib/dleft_pad_circular.native.js' ) );
+var opts = {
+ 'skip': ( dleftPadCircular instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dleftPadCircular, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 6', opts, function test( t ) {
+ t.strictEqual( dleftPadCircular.length, 6, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function prepends elements to a strided array by circularly repeating existing elements', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 6, x, 1, y, 1 );
+ expected = new Float64Array( [ 3.0, 4.0, 1.0, 2.0, 3.0, 4.0, 1.0, 2.0, 3.0, 4.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 2, x, 1, y, 1 );
+ expected = new Float64Array( [ 2.0, 3.0, 1.0, 2.0, 3.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 4, x, 1, y, 1 );
+ expected = new Float64Array( [ 1.0, 2.0, 1.0, 2.0, 1.0, 2.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', opts, function test( t ) {
+ var x;
+ var y;
+ var v;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ v = dleftPadCircular( x.length, 2, x, 1, y, 1 );
+
+ t.strictEqual( v, y, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `y` unchanged', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ expected = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ dleftPadCircular( -1, 2, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ dleftPadCircular( 0, 2, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter less than `0`, the function copies indexed elements in `x` to `y` without padding', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0 ] );
+
+ expected = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+
+ dleftPadCircular( x.length, -1, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, y, 1 );
+
+ expected = new Float64Array( [ 3.0, 5.0, 1.0, 3.0, 5.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0,
+ 0.0, // 0
+ 0.0,
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0
+ ]);
+
+ dleftPadCircular( 3, 2, x, 1, y, 2 );
+
+ expected = new Float64Array( [ 2.0, 0.0, 3.0, 0.0, 1.0, 0.0, 2.0, 0.0, 3.0, 0.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, -2, y, -1 );
+
+ expected = new Float64Array( [ 1.0, 3.0, 5.0, 1.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, y, -1 );
+
+ expected = new Float64Array( [ 5.0, 3.0, 1.0, 5.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports view offsets', opts, function test( t ) {
+ var expected;
+ var x0;
+ var x1;
+ var y0;
+ var y1;
+
+ // Initial arrays...
+ x0 = new Float64Array([
+ 1.0,
+ 2.0, // 0
+ 3.0,
+ 4.0, // 1
+ 5.0,
+ 6.0 // 2
+ ]);
+ y0 = new Float64Array([
+ 0.0,
+ 0.0,
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ // Create offset views...
+ x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // begin at 2nd element
+ y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*2 ); // begin at 3rd element
+
+ dleftPadCircular( 3, 2, x1, 2, y1, 1 );
+ expected = new Float64Array( [ 0.0, 0.0, 4.0, 6.0, 2.0, 4.0, 6.0 ] );
+
+ t.deepEqual( y0, expected, 'returns expected value' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.js
new file mode 100644
index 000000000000..63cc936d0c7b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var dleftPadCircular = require( './../lib' );
+
+
+// VARIABLES //
+
+var opts = {
+ 'skip': IS_BROWSER
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dleftPadCircular, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+ t.strictEqual( typeof dleftPadCircular.ndarray, 'function', 'method is a function' );
+ t.end();
+});
+
+tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
+ var dleftPadCircular = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( dleftPadCircular, mock, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return mock;
+ }
+
+ function mock() {
+ // Mock...
+ }
+});
+
+tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
+ var dleftPadCircular;
+ var main;
+
+ main = require( './../lib/dleft_pad_circular.js' );
+
+ dleftPadCircular = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( dleftPadCircular, main, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return new Error( 'Cannot find module' );
+ }
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.ndarray.js
new file mode 100644
index 000000000000..8494c0d03cb4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.ndarray.js
@@ -0,0 +1,318 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var dleftPadCircular = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dleftPadCircular, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 8', function test( t ) {
+ t.strictEqual( dleftPadCircular.length, 8, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function prepends elements to a strided array by circularly repeating existing elements', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 6, x, 1, 0, y, 1, 0 );
+ expected = new Float64Array( [ 3.0, 4.0, 1.0, 2.0, 3.0, 4.0, 1.0, 2.0, 3.0, 4.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 2, x, 1, 0, y, 1, 0 );
+ expected = new Float64Array( [ 2.0, 3.0, 1.0, 2.0, 3.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 4, x, 1, 0, y, 1, 0 );
+ expected = new Float64Array( [ 1.0, 2.0, 1.0, 2.0, 1.0, 2.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var x;
+ var y;
+ var v;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ v = dleftPadCircular( x.length, 2, x, 1, 0, y, 1, 0 );
+
+ t.strictEqual( v, y, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `y` unchanged', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ expected = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ dleftPadCircular( -1, 2, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ dleftPadCircular( 0, 2, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter less than `0`, the function copies indexed elements in `x` to `y` without padding', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0 ] );
+
+ expected = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+
+ dleftPadCircular( x.length, -1, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, 0, y, 1, 0 );
+
+ expected = new Float64Array( [ 3.0, 5.0, 1.0, 3.0, 5.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0,
+ 0.0, // 0
+ 0.0,
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0
+ ]);
+
+ dleftPadCircular( 3, 2, x, 1, 0, y, 2, 0 );
+
+ expected = new Float64Array( [ 2.0, 0.0, 3.0, 0.0, 1.0, 0.0, 2.0, 0.0, 3.0, 0.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, -2, 4, y, -1, 4 );
+
+ expected = new Float64Array( [ 1.0, 3.0, 5.0, 1.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 2.0,
+ 1.0, // 0
+ 2.0,
+ -2.0, // 1
+ -2.0,
+ 2.0, // 2
+ 3.0,
+ 4.0 // 3
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 3
+ 0.0, // 0
+ 0.0, // 1
+ 0.0, // 2
+ 0.0 // 3
+ ]);
+
+ dleftPadCircular( 4, 2, x, 2, 1, y, 1, 0 );
+
+ expected = new Float64Array( [ 2.0, 4.0, 1.0, -2.0, 2.0, 4.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` offset', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0,
+ 0.0,
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 1, 0, y, 1, 2 );
+
+ expected = new Float64Array( [ 0.0, 0.0, 2.0, 3.0, 1.0, 2.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a zero `x` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0,
+ 2.0, // 0, 1, 2
+ 3.0
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 0, 1, y, 1, 0 );
+
+ expected = new Float64Array( [ 2.0, 2.0, 2.0, 2.0, 2.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, 0, y, -1, 4 );
+
+ expected = new Float64Array( [ 5.0, 3.0, 1.0, 5.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.ndarray.native.js
new file mode 100644
index 000000000000..3fb8bf9aacb2
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/dleft-pad-circular/test/test.ndarray.native.js
@@ -0,0 +1,327 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var Float64Array = require( '@stdlib/array/float64' );
+
+
+// VARIABLES //
+
+var dleftPadCircular = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( dleftPadCircular instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dleftPadCircular, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 8', opts, function test( t ) {
+ t.strictEqual( dleftPadCircular.length, 8, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function prepends elements to a strided array by circularly repeating existing elements', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 6, x, 1, 0, y, 1, 0 );
+ expected = new Float64Array( [ 3.0, 4.0, 1.0, 2.0, 3.0, 4.0, 1.0, 2.0, 3.0, 4.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 2, x, 1, 0, y, 1, 0 );
+ expected = new Float64Array( [ 2.0, 3.0, 1.0, 2.0, 3.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( [ 1.0, 2.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ dleftPadCircular( x.length, 4, x, 1, 0, y, 1, 0 );
+ expected = new Float64Array( [ 1.0, 2.0, 1.0, 2.0, 1.0, 2.0 ] );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', opts, function test( t ) {
+ var x;
+ var y;
+ var v;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+ v = dleftPadCircular( x.length, 2, x, 1, 0, y, 1, 0 );
+
+ t.strictEqual( v, y, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `y` unchanged', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ expected = new Float64Array( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+
+ dleftPadCircular( -1, 2, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ dleftPadCircular( 0, 2, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `k` parameter less than `0`, the function copies indexed elements in `x` to `y` without padding', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ y = new Float64Array( [ 6.0, 7.0, 8.0 ] );
+
+ expected = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+
+ dleftPadCircular( x.length, -1, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, 0, y, 1, 0 );
+
+ expected = new Float64Array( [ 3.0, 5.0, 1.0, 3.0, 5.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0,
+ 0.0, // 0
+ 0.0,
+ 0.0, // 1
+ 0.0,
+ 0.0, // 2
+ 0.0
+ ]);
+
+ dleftPadCircular( 3, 2, x, 1, 0, y, 2, 0 );
+
+ expected = new Float64Array( [ 2.0, 0.0, 3.0, 0.0, 1.0, 0.0, 2.0, 0.0, 3.0, 0.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, -2, 4, y, -1, 4 );
+
+ expected = new Float64Array( [ 1.0, 3.0, 5.0, 1.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 2.0,
+ 1.0, // 0
+ 2.0,
+ -2.0, // 1
+ -2.0,
+ 2.0, // 2
+ 3.0,
+ 4.0 // 3
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 3
+ 0.0, // 0
+ 0.0, // 1
+ 0.0, // 2
+ 0.0 // 3
+ ]);
+
+ dleftPadCircular( 4, 2, x, 2, 1, y, 1, 0 );
+
+ expected = new Float64Array( [ 2.0, 4.0, 1.0, -2.0, 2.0, 4.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` offset', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0, // 1
+ 3.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0,
+ 0.0,
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 1, 0, y, 1, 2 );
+
+ expected = new Float64Array( [ 0.0, 0.0, 2.0, 3.0, 1.0, 2.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a zero `x` stride', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0,
+ 2.0, // 0, 1, 2
+ 3.0
+ ]);
+ y = new Float64Array([
+ 0.0, // 1
+ 0.0, // 2
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ dleftPadCircular( 3, 2, x, 0, 1, y, 1, 0 );
+
+ expected = new Float64Array( [ 2.0, 2.0, 2.0, 2.0, 2.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', opts, function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = new Float64Array([
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ]);
+ y = new Float64Array([
+ 0.0, // 2
+ 0.0, // 1
+ 0.0, // 0
+ 0.0, // 2
+ 0.0 // 1
+ ]);
+
+ dleftPadCircular( 3, 2, x, 2, 0, y, -1, 4 );
+
+ expected = new Float64Array( [ 5.0, 3.0, 1.0, 5.0, 3.0 ] );
+
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});