frexp
=====

POSIX specification: http://www.opengroup.org/susv3xsh/frexp.html

Gnulib module: frexp

Portability problems fixed by Gnulib:

  * This function does not work on denormalized numbers on some platforms: NetBSD 3.0.

  * This function does not work on infinite numbers on some platforms: IRIX 6.5.

Portability problems not fixed by Gnulib: