ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: user42 <user42@student.42.fr>              +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/06/15 17:49:28 by marcrodr          #+#    #+#             */
/*   Updated: 2021/06/21 16:56:02 by user42           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_substr(char const *s, unsigned int start, size_t len)
{
	char	*str;
	size_t	s_len;

	if (!s)
		return (0);
	if (ft_strlen(s) < start)
		return (ft_calloc(1, sizeof(char)));
	s_len = ft_strlen(s + start);
	if ((s_len) < len)
		len = s_len;
	str = (char *)malloc((len + 1) * sizeof(char));
	if (!str)
		return (0);
	ft_strlcpy(str, (s + start), len + 1);
	return (str);
}