ffs
===

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

Gnulib module: ffs

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: mingw, MSVC 14.

Portability problems not fixed by Gnulib:

  * This function is only defined as an inline function on some platforms: Android 13.