Custom string compare

size_t custom_strlen(char* string)
{
	size_t _strlen = 0;
	while('\0' != *string)
	{
		string++;
		_strlen++;
	}
	return _strlen;
}

unsigned int custom_strcmp(char* str1, char* str2)
{
	unsigned int rt = 1;

	for(int _strlen = custom_strlen(str1); _strlen > 0; _strlen--)
	{
		if(*(str1+_strlen) != *(str2+_strlen))
		{
			rt = 0;
			break;
		}
	}
	return rt;
}