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Re: Implement C++20 constexpr <algorithm>, , and <array>

Am Fr., 29. März 2019 um 19:08 Uhr schrieb Ed Smith-Rowland via
libstdc++ <libstdc++@gcc.gnu.org>:
>
> I made __memmove and __memcmp inline so that, certainly for C++ < 20
> these don't pessimize.

Hmmh, are you sure? In my (not very up-to-date) code base I find that
c++config.h defines

#ifndef _GLIBCXX20_CONSTEXPR
# if __cplusplus > 201703L
#  define _GLIBCXX20_CONSTEXPR constexpr
# else
#  define _GLIBCXX20_CONSTEXPR
# endif
#endif

So unless __cplusplus > 201703L, there is no inline in sight.

- Daniel
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