https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96830

Oliver Schönrock <oschonrock at gmail dot com> changed:

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                 CC|                            |oschonrock at gmail dot com

--- Comment #7 from Oliver Schönrock <oschonrock at gmail dot com> ---
It appears gcc's failure to "complain about redeclaration with inconsistent
requires clause " might be hiding a small bug in libstdc++:

https://godbolt.org/z/vxsY6oohM

clang-trunk reports:

/opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/13.0.0/../../../../include/c++/13.0.0/ranges:6098:14:
error: requires clause differs in template redeclaration
    requires forward_range<_Vp>
             ^
/opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/13.0.0/../../../../include/c++/13.0.0/ranges:5797:14:
note: previous template declaration is here
    requires input_range<_Vp>


whereas gcc silently swallows the inconsistency?

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