`frexpl`

POSIX specification:

http://www.opengroup.org/onlinepubs/9699919799/functions/frexpl.html

Gnulib module: frexpl

Portability problems fixed by Gnulib:

- This function is missing on some platforms: FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin, Interix 3.5.
- This function is only defined as a macro with arguments on some platforms: MSVC 9.
- This function is not declared on some platforms: MacOS X 10.3.
- This function does not work on finite numbers on some platforms: MacOS X 10.4/PowerPC, AIX 5.1, MSVC 9, BeOS.
- This function does not work on denormalized numbers on some platforms: MacOS X 10.5/i386.
- This function does not work on infinite numbers on some platforms: IRIX 6.5, mingw, MSVC 9.

Portability problems not fixed by Gnulib: