9.281 fmod

POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/fmod.html

Gnulib module: fmod or fmod-ieee

Portability problems fixed by either Gnulib module fmod or fmod-ieee:

Portability problems fixed by Gnulib module fmod-ieee:

• This function has problems when the second argument is zero on some platforms: OSF/1 5.1.
• This function has problems when the first argument is minus zero on some platforms: mingw, MSVC 9.

Portability problems not fixed by Gnulib: