ft_strsub.c

/* ************************************************************************** */
/*                                                          LE - /            */
/*                                                              /             */
/*   ft_strsub.c                                      .::    .:/ .      .::   */
/*                                                 +:+:+   +:    +:  +:+:+    */
/*   By: brobicho <marvin@le-101.fr>                +:+   +:    +:    +:+     */
/*                                                 #+#   #+    #+    #+#      */
/*   Created: 2017/12/04 03:20:00 by brobicho     #+#   ##    ##    #+#       */
/*   Updated: 2017/12/04 03:20:00 by brobicho    ###    #+. /#+    ###.fr     */
/*                                                         /                  */
/*                                                        /                   */
/* ************************************************************************** */

#include "libft.h"

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

	if (!(res = malloc(len + 1)) || !s || start > ft_strlen(s))
		return (NULL);
	i = 0;
	while (i < len && s[start])
		res[i++] = s[start++];
	res[i] = '\0';
	return (res);
}