frexpl
======

POSIX specification:
 https://pubs.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 1.7.x, Android 4.4.

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

  * This function does not work on finite numbers on some platforms: AIX 5.1, MSVC 14.

  * This function does not work on denormalized numbers on some platforms: macOS 10.13/i386.

  * This function does not work on infinite numbers on some platforms: IRIX 6.5, mingw, MSVC 14.

Portability problems not fixed by Gnulib: