https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110615
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|UNCONFIRMED |RESOLVED
Version|unknown |6.5.0
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is the expected behaviour for those old releases (which are no longer
supported or maintained, and so there's no point reporting bugs in them).
Prior to the resolutions of https://wg21.link/lwg2192 and
https://wg21.link/lwg2294 the integer overloads of std::abs were only declared
in <cstdlib>, so if you only include <cmath> then you only get the
floating-point overloads.
GCC 7.0 implements the resolutions to those issues, in r7-3447-g37b204de605563
