ref: c6fdc59547c448477e8994e87e0c4487abbb752a dir: /lib/c/src/tolower.c/
/* See LICENSE file for copyright and license details. */ #define __USE_MACROS #include <ctype.h> #undef tolower int tolower(int c) { return (isupper(c)) ? c | 0x20 : c; }