ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tauer <tauer@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/11/06 15:45:26 by tauer             #+#    #+#             */
/*   Updated: 2023/11/06 15:45:26 by tauer            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	if (!s)
		return (NULL);
	if (start > ft_strlen(s))
		return (ft_strdup(""));
	i = ft_strlen(s + start);
	if (len > i)
		len = i;
	if (len >= SIZE_MAX)
		return (NULL);
	str = (char *)malloc(sizeof(char) * (len + 1));
	if (!str)
		return (NULL);
	ft_strlcpy(str, s + start, len + 1);
	return (str);
}

// int main()
// {
// 	char *str = ft_substr("tripouille", 0, 42000);

// 	free(str);
//     return (0);
// }