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@node trunc
@section @code{trunc}
@findex trunc
POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/trunc.html}
Gnulib module: trunc or trunc-ieee
Portability problems fixed by either Gnulib module @code{trunc} or @code{trunc-ieee}:
@itemize
@item
This function is missing on some platforms:
FreeBSD 5.2.1, NetBSD 3.0, OpenBSD 3.8, Solaris 9, MSVC 9, Interix 3.5.
@item
This function is not declared (without @code{-D_GNU_SOURCE}) on some platforms:
glibc 2.8.
@end itemize
Portability problems fixed by Gnulib module @code{trunc-ieee}:
@itemize
@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
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