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view doc/posix-functions/isnan.texi @ 39913:73d60b1f9c96
doc: Update for Solaris 11.4.
* doc/**/*.texi: For bugs that exist in both Solaris 11.3 and 11.4,
mention Solaris 11.4.
* m4/printf.m4: Update comments about Solaris.
* m4/log.m4: Likewise.
* m4/log10.m4: Likewise.
* m4/logb.m4: Likewise.
* m4/logbf.m4: Likewise.
* m4/logbl.m4: Likewise.
* m4/rename.m4: Likewise.
* m4/wcrtomb.m4: Likewise.
* m4/hostent.m4: Likewise.
* m4/servent.m4: Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 14 Oct 2018 09:33:46 +0200 |
parents | 11af6bbd6df5 |
children |
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@node isnan @section @code{isnan} @findex isnan POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/isnan.html} Gnulib module: isnan Portability problems fixed by Gnulib: @itemize @item This macro is missing on some platforms: MSVC 9. @item @code{isnan} was introduced with C99 and is thus commonly not present on pre-C99 systems. @item @code{isnan} is not a macro on some platforms: IRIX 6.5, OSF/1 5.1 with gcc, Solaris 11.4. @item This macro does not work on some platforms: MSVC 14. @item On IRIX 6.5 with @code{cc}, @code{isnan} does not recognize some NaNs. @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