frexpf
======

POSIX specification:
 https://pubs.opengroup.org/onlinepubs/9699919799/functions/frexpf.html

Gnulib module: frexpf

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: Minix 3.1.8, AIX 5.1, HP-UX 11, older IRIX 6.5, Solaris 9.

  * This function is only defined as a macro with arguments on some platforms: MSVC 14.

  * This function does not work on negative zero on some platforms: mingw.

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

Portability problems not fixed by Gnulib: