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Fix SFINAE calling a function template with deduced return type and pending definition - #322
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cpplearner wants to merge 3 commits into
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cpplearner wants to merge 3 commits into
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With modules, it is possible that a function template definition exists in a module but the definition is not yet loaded. In such a case,
routine->definedis false, despite the existence of a definition. Previously, substitution failed if such a function template is called in a SFINAE context and the function template has a deduced return type. This is fixed in this PR.See #242 for an example.
Fixes #242