https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114536
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2024-03-31
Ever confirmed|0 |1
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note you can't compare against clang though:
/opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/14.0.1/../../../../include/c++/14.0.1/bit:94:14:
note: constexpr bit_cast involving bit-field is not yet supported
But anyways with the padding bit.
With signed char instead of unsigned char, GCC gives:
```
/opt/compiler-explorer/gcc-trunk-20240331/include/c++/14.0.1/bit:94:33: error:
'__builtin_bit_cast' accessing uninitialized byte at offset 0
```
That is correct for that but in the case of unsigned char (or std::byte).
