[PATCH][_GLIBCXX_DEBUG][__cplusplus >= 201103L] Remove useless workaround

[Jonathan Wakely]

On Sat, 21 Mar 2026 at 13:45, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
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> On Sat, 21 Mar 2026, 13:36 François Dumont, <frs.dumont@gmail.com> wrote:
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>> Still no chance to reproduce this problem.
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>> I think the patch is good and that you are simply missing it in the below build.
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>> The compiler is reporting the error coming from:
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>> /home/tkaminsk/build/gcc/16/x86_64-pc-linux-gnu/libstdc++-v3/include/debug/string:238:   required from '__gnu_debug::basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator, _InputIterator, const _Allocator&) [with _InputIterator = int; _CharT = char; _Traits = std::char_traits<char>; _Allocator = std::allocator<char>]'
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>> Line 238 is the former line of the call to __glibcxx_check_valid_constructor_range(__begin, __end) that is leading to the error.
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>> After my patch it is on line 243.
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>
> Tomasz and I are both testing current trunk. If we're missing your patch, then it means it hasn't been pushed to trunk.

I see the problem, the errors are with -D_GLIBCXX_USE_CXX11_ABI=0 and
-D_GLIBCXX_DEBUG

e.g.
make check RUNTESTFLAGS="conformance.exp=28_regex/match_results/swap.cc
--target_board=unix/-D_GLIBCXX_USE_CXX11_ABI=0/
-D_GLIBCXX_DEBUG"