NAME
   strtolower - transform an ASCII string to lower case

SYNOPSIS
   strtolower(x_1)

TYPES
    str                 string
    x_1                 any

    return              string

DESCRIPTION
   All ASCII upper case letters get transformed into lower case letters. This
   function can be locale dependent.

   The function returns the lowercased string.

EXAMPLE
    ; strtolower(" GNU Lesser General Public License");
        " gnu lesser general public license"

LIMITS
    none.

LINK LIBRARY
    none

SEE ALSO
    strcat, strcpy, strerror, strlen, strncmp, strncpy, strpos,
    strprintf, strscanf, substr

## Copyright (C) 2013,2021 Christoph Zurnieden
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL.  You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
