On Sun, 3 Aug 2025, 19:29 hexne, <print...@gmail.com> wrote: > std::byteswap was added to the <bit> header file in c++23 and has been > implemented, but it was not exported in std.cc.in. Therefore, when > using import std, std::byteswap cannot be used. Exporting it in > std.cc.in can solve this problem. > > Tested on x86_64-linux. > Signed-off-by: hexne <print...@gmail.com> > diff --git a/libstdc++-v3/src/c++23/std.cc.in b/libstdc++-v3/src/c++23/ > std.cc.in > index 9301ed90c00..61f0b715b36 100644 > --- a/libstdc++-v3/src/c++23/std.cc.in > +++ b/libstdc++-v3/src/c++23/std.cc.in > @@ -663,6 +663,7 @@ export namespace std > using std::bit_ceil; > using std::bit_floor; > using std::bit_width; > + using std::byteswap; >
This needs to be guarded by the feature test macro because std.cc can be compiled for C++20. using std::countl_one; > using std::countl_zero; > using std::countr_one; >
