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@node isinf
@section @code{isinf}
@findex isinf
POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/isinf.html}
Gnulib module: isinf
Portability problems fixed by Gnulib:
@itemize
@item
This macro is missing on some platforms:
AIX 5.1, IRIX 6.5, OSF/1 5.1, Solaris 11 2011-11.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
This macro returns an unspecified result when given noncanonical values
such as unnormalized numbers, pseudo-denormals, pseudo-NaNs,
pseudo-Infinities, and pseudo-zeroes.
@end itemize
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