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Add char_traits<uint8_t> #1820

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@placintaalexandru placintaalexandru commented Apr 10, 2025

Fixes 1812

char_traits<uint8_t> type was not supplied

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@microsoft-github-policy-service agree

@placintaalexandru placintaalexandru force-pushed the fix/Build-on-recent-libc++ branch from 0bcfaff to 396259a Compare April 10, 2025 14:37
aminya added a commit to aminya/vcpkg that referenced this pull request May 5, 2025
Cpprestsdk fails to compile on newer MacOS due to missing char_traits.

This provides the fix from microsoft/cpprestsdk#1820
Related to microsoft/cpprestsdk#1812
aminya added a commit to aminya/vcpkg that referenced this pull request May 5, 2025
Cpprestsdk fails to compile on newer MacOS due to missing char_traits.

This provides the fix from microsoft/cpprestsdk#1820
Related to microsoft/cpprestsdk#1812
aminya added a commit to aminya/vcpkg that referenced this pull request May 5, 2025
Cpprestsdk fails to compile on newer MacOS due to missing char_traits.

This provides the fix from microsoft/cpprestsdk#1820
Related to microsoft/cpprestsdk#1812
aminya added a commit to aminya/vcpkg that referenced this pull request May 5, 2025
Cpprestsdk fails to compile on newer MacOS due to missing char_traits.

This provides the fix from microsoft/cpprestsdk#1820
Related to microsoft/cpprestsdk#1812
@BillyONeal
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This PR introduces undefined behavior: https://eel.is/c++draft/requirements#namespace.std-2

There is no program-defined type here. This also fails if 2 libraries try to do this.

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The definition needs to be guarded

@@ -0,0 +1,74 @@
#include <cstdint>
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Suggested change
#include <cstdint>
#pragma once
#include <cstddef>
#if (_LIBCPP_VERSION >= 190000)
#include <cstdint>


static int_type eof() noexcept { return static_cast<int_type>(-1); }
};
} // namespace std
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Suggested change
} // namespace std
} // namespace std
#endif // (_LIBCPP_VERSION >= 190000)

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Fails to build on recent libc++ (20 tested)
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