fusl/src/ctype/tolower.c

#include <ctype.h>
#include "libc.h"

int tolower(int c) {
  if (isupper(c))
    return c | 32;
  return c;
}

int __tolower_l(int c, locale_t l) {
  return tolower(c);
}

weak_alias(__tolower_l, tolower_l);