/* Copyright (C) 2008 - 2011 by John Cronin
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:

 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "stdlib.h"

int strcmp(const char *s1, const char *s2)
{
	while(*s1 != '\0') {
		if(*s1 < *s2)
			return (int)*s1 - (int)*s2;
		if(*s1 > *s2)
			return (int)*s1 - (int)*s2;
		s1++;
		s2++;
	}
	return (int)*s1 - (int)*s2;
}

int strncmp(const char *s1, const char *s2, size_t n)
{
	int i;

	for(i = 0; i < n; i++) {
		if(s1[i] < s2[i])
			return (int)s1[i] - (int)s2[i];
		if(s1[i] > s2[i])
			return (int)s1[i] - (int)s2[i];
		if(s1[i] == '\0')
			return 0;
	}
	return 0;
}

char *strncpy(char *dest, const char *src, size_t n)
{
	int i;

	for(i = 0; i < n; i++)
		dest[i] = src[i];

	return dest;
}

size_t strlen(const char *s)
{
	size_t len = 0;
	while(*s != '\0') {
		len++;
		s++;
	}
	return len;
}

void *memset(void *s, int c, size_t n)
{
	size_t i;

	for(i = 0; i < n; i++) {
		char *v = (char *)(i + (int)s);
		*v = (char)(c);
	}
	return s;
}
