[PATCHv2] libstdc++: Add NTTP bind_front, -back, not_fn (P2714) [PR119744]

[Nathan Myers]

On 7/18/25 07:21, Tomasz Kaminski wrote:
> And then having in bind_front()
> if constexpr (sizeof(_BoundsArgs) == 0)
>    return _Fn_t<__fn>();

Is the above better than just

   if constexpr (sizeof(_BoundArgs) == 0)
       return __fn;

?