ft_strrev.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strrev.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: dskrypny <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2017/11/30 20:24:29 by dskrypny          #+#    #+#             */
/*   Updated: 2017/12/09 12:38:38 by dskrypny         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strrev(char *s)
{
	char	*str;
	size_t	len;
	size_t	i;

	if (!s)
		return (NULL);
	i = 0;
	len = ft_strlen(s);
	if (!(str = (char *)malloc(sizeof(char) * (len + 1))))
		return (NULL);
	while (s[i])
	{
		str[i++] = s[len-- - 1];
	}
	str[i] = '\0';
	return (s);
}