@node _tolower
@section @code{_tolower}
@findex _tolower

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/_tolower.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:
macOS 11.1, Minix 3.1.8, Android 4.4.
@item
POSIX says this function is obsolescent and it is planned to be
removed in POSIX 202x.
Use the function @code{tolower} instead.
@end itemize
