refactor head containers

[ashtum]

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[cppalliance-bot]

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If more commits are pushed to the pull request, the docs will rebuild at the same URL.

2026-07-31 13:11:44 UTC

[codecov]

Codecov Report

❌ Patch coverage is 99.78632% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.97%. Comparing base (ce7feab) to head (fd6acbe).

Files with missing lines	Patch %	Lines
src/fields_base.cpp	99.63%	2 Missing ⚠️
src/message_head_base.cpp	99.31%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #40      +/-   ##
===========================================
+ Coverage    98.10%   98.97%   +0.86%     
===========================================
  Files           39       61      +22     
  Lines         1639     3422    +1783     
===========================================
+ Hits          1608     3387    +1779     
- Misses          31       35       +4     

Flag	Coverage Δ
linux	98.97% <99.78%> (+0.86%)	⬆️

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Files with missing lines	Coverage Δ
include/boost/burl/client.hpp	100.00% <ø> (ø)
include/boost/burl/detail/parser.hpp	100.00% <ø> (ø)
include/boost/burl/detail/request_parser.hpp	100.00% <100.00%> (ø)
include/boost/burl/detail/response_parser.hpp	100.00% <100.00%> (ø)
include/boost/burl/fields.hpp	100.00% <100.00%> (ø)
include/boost/burl/fields_base.hpp	100.00% <100.00%> (ø)
include/boost/burl/head_parser.hpp	100.00% <100.00%> (ø)
include/boost/burl/message_head_base.hpp	100.00% <100.00%> (ø)
include/boost/burl/request_head.hpp	100.00% <100.00%> (ø)
include/boost/burl/request_head_base.hpp	100.00% <100.00%> (ø)
... and 25 more

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