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@node ceil
@section @code{ceil}
@findex ceil
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/ceil.html}
Gnulib module: ceil or ceil-ieee
Portability problems fixed by either Gnulib module @code{ceil} or @code{ceil-ieee}:
@itemize
@end itemize
Portability problems fixed by Gnulib module @code{ceil-ieee}:
@itemize
@item
This function returns a positive zero for an argument between @minus{}1 and 0
on some platforms:
AIX 7.1.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@end itemize
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