source: azure_iot_hub/trunk/musl-1.1.18/src/ctype/islower.c@ 389

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

int islower(int c)
{
        return (unsigned)c-'a' < 26;
}

int __islower_l(int c, locale_t l)
{
        return islower(c);
}

weak_alias(__islower_l, islower_l);