@node ceilf
@section @code{ceilf}
@findex ceilf

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ceilf.html}

Gnulib module: ceilf or ceilf-ieee

Portability problems fixed by either Gnulib module @code{ceilf} or @code{ceilf-ieee}:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 9.
@item
This function is only defined as a macro with arguments on some platforms:
MSVC 9.
@end itemize

Portability problems fixed by Gnulib module @code{ceilf-ieee}:
@itemize
@item
This function returns a positive zero for an argument between -1 and 0
on some platforms:
MacOS X 10.5, AIX 7.1, OSF/1 5.1.
@item
This function returns a positive zero for a minus zero argument
on some platforms:
OSF/1 5.1.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@end itemize