ft_strsub.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strsub.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hshawand <hshawand@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/04/03 12:36:19 by hshawand          #+#    #+#             */
/*   Updated: 2019/04/15 12:21:28 by hshawand         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <stdlib.h>
#include <string.h>

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

	if (!s || len + 1 == 0)
		return (0);
	substring = (char *)malloc(sizeof(char) * (len + 1));
	if (!substring)
		return (NULL);
	max = len;
	i = 0;
	while (i < max)
	{
		substring[i] = s[start + i];
		i++;
	}
	substring[i] = '\0';
	return (substring);
}