//---
//	gint:core:string - replicas of a few string functions
//---

#include <gint/defs/types.h>
#include <gint/defs/attributes.h>
#include <gint/std/string.h>
#include <stdarg.h>

GWEAK size_t strlen(char const *str)
{
	int len = 0;
	while(str[len]) len++;
	return len;
}

GWEAK char *strncpy(char *dst, char const *src, size_t n)
{
	size_t i = 0;
	while(i < n && (dst[i] = src[i])) i++;
	return dst;
}

GWEAK char *strcat(char *dest, char const *src)
{
	unsigned long fin_dest = strlen(dest);
	unsigned int i;
	for (i = 0 ; i <= strlen(src) ; i++) dest[fin_dest + i] = src[i];
	return dest;
}

GWEAK int strcmp(char const *s1, char const *s2)
{
	while(*s1 && *s1 == *s2) s1++, s2++;
	return *s1 - *s2;
}

GWEAK char *strchr(char const *s, int c)
{
	while(*s && *s != c) s++;
	return (*s) ? (char *)s : NULL;
}

GWEAK char *strrchr(char const *s, int c)
{
	char const *found = NULL;
	while(*s)
	{
		if(*s == c) found = s;
		s++;
	}
	return (char *)found;
}