@node truncl
@section @code{truncl}
@findex truncl

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

Gnulib module: truncl or truncl-ieee

Portability problems fixed by either Gnulib module @code{truncl} or @code{truncl-ieee}:
@itemize
@item
This function is missing on some platforms:
FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin, MSVC 9, Interix 3.5, BeOS.
@item
This function is not declared (without @code{-D_GNU_SOURCE}) on some platforms:
glibc 2.8.
@item
This function crashes on some platforms:
OSF/1 4.0.
@end itemize

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

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