@node copysignf
@section @code{copysignf}
@findex copysignf

POSIX specification: @url{http://www.opengroup.org/susv3xsh/copysignf.html}

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
AIX 5.1, IRIX 6.5, Solaris 9.
@end itemize