ft_strsub.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strsub.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mrychkov <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2017/04/29 20:31:26 by mrychkov          #+#    #+#             */
/*   Updated: 2017/04/29 20:37:15 by mrychkov         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strsub(char const *s, unsigned int start, size_t len)
{
	size_t		i;
	char		*ptr;

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