@section @code{truncl}
@findex truncl
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/truncl.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/truncl.html}
-Gnulib module: truncl
+Gnulib module: truncl or truncl-ieee
-Portability problems fixed by Gnulib:
+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 3.0, OpenBSD 3.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin, Interix 3.5, BeOS.
+FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin, 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: