@node crypt
@section @code{crypt}
@findex crypt

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/crypt.html}

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
glibc 2.34, FreeBSD 6.0, NetBSD 5.0, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
@item
This function is not declared in @code{<unistd.h>}
(without @code{-D_GNU_SOURCE}) on some platforms:
glibc (at least 2.11--2.13).
@end itemize
