int		ft_strlen(char *str)
{
	int	counter;

	counter = 0;
	while (*str)
	{
		counter++;
		str++;
	}
	return (counter);
}

char    *ft_strrev(char *str)
{
	int		i;
	int		j;
	char	tmp;

	i = 0;
	j = ft_strlen(str) - 1;
	while (i <= j)
	{
		tmp = str[i];
		str[i] = str[j];
		str[j] = tmp;
		i++;
		j--;
	}
	return (str);
}