[Bug libstdc++/60401] New: stdlib.h does not provide abs(long) overload

[sbergman at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60401

            Bug ID: 60401
           Summary: stdlib.h does not provide abs(long) overload
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sbergman at redhat dot com

When libstdc++ sits on top of glibc, including stdlib.h does not provide an
abs(long) overload (unlike including cstdlib providing a std::abs(long)
overload).

Similarly for C++11 abs(long long) and stdlib.h vs. cmath abs(float/double/long
double).

(Fixing this needs cooperation with glibc, see the mail thread starting at
<http://gcc.gnu.org/ml/libstdc++/2014-03/msg00002.html> "stdlib.h abs(long)
overload?")