field.ipp: IWYU for <cstdint>

[ednolan]

Previously, a file that included only boost/beast/http/fields.hpp would fail to compile on GCC 13.1.0 with the following error:

In file included from /boost/boost/beast/http/field.hpp:411,
                 from /boost/boost/beast/http/fields.hpp:16,
                 from /repro/boost_repro.cpp:1:
/boost/boost/beast/http/impl/field.ipp:30:10: error: 'uint32_t' in namespace 'std' does not name a type; did you mean 'wint_t'?
   30 |     std::uint32_t
      |          ^~~~~~~~
      |          wint_t

This was because boost/beast/http/impl/field.ipp relied on a transitive include that is no longer present in libstdc++ 13.

This commit addresses the issue by adding a <cstdint> include to boost/beast/http/impl/field.ipp.

[vinniefalco]

That should have been caught with this unit test:

beast/test/beast/http/field.cpp

Line 11 in b0996f0

#include <boost/beast/http/field.hpp>

[ednolan]

My guess would be that the unit tests were never run with GCC 13. I don't see that compiler in the list of CI checks

[vinniefalco]

of COURSE... the ONE configuration that we don't test... is the one that has the error :)

[ednolan]

To be fair, GCC 13 only came out five days ago.

[vinniefalco]

Oh! I thought it was older.. thanks

[royjacobson]

Just had the same problem with beast/core/file_base.hpp. It might be a wider problem :/

[vinniefalco]

we need to add gcc13 to the matrix and fix all the errors

[klemens-morgenstern]

Can confirm from local install (fedora 38)

[codecov]

Codecov Report

Merging #2676 (283781e) into develop (b0996f0) will decrease coverage by 0.03%.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2676      +/-   ##
===========================================
- Coverage    92.96%   92.94%   -0.03%     
===========================================
  Files          177      177              
  Lines        13651    13658       +7     
===========================================
+ Hits         12691    12694       +3     
- Misses         960      964       +4     

Impacted Files	Coverage Δ
include/boost/beast/http/impl/field.ipp	97.64% <ø> (ø)

... and 3 files with indirect coverage changes

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[klemens-morgenstern]

Completed in #2682