2 @section @code{isfinite}
5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/isfinite.html}
7 Gnulib module: isfinite
9 Portability problems fixed by Gnulib:
12 This macro is missing on some platforms:
13 Mac OS X 10.5, OpenBSD 3.8, AIX 5.1, IRIX 6.5, OSF/1 5.1, Solaris 11 2011-11, Interix 3.5.
15 This macro incorrectly yields true for some @samp{double} arguments, on some
17 Linux/ia64 (signalling NaNs).
19 This macro incorrectly yields true for some @samp{long double} arguments, on
21 x86 (pseudo-zeroes, unnormalized numbers, pseudo-denormals),
22 x86_64 (pseudo-denormals),
23 ia64 (pseudo-NaN, pseudo-Infinity, pseudo-zeroes, unnormalized numbers, pseudo-denormals).
26 Portability problems not fixed by Gnulib:
29 It is implementation-dependent whether @code{isfinite} raises an
30 exception given a signaling NaN operand.