ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: falarm <falarm@student.42.fr>              +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/10/12 21:07:45 by falarm            #+#    #+#             */
/*   Updated: 2021/10/12 21:20:28 by falarm           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	str = NULL;
	if (s)
	{
		if (start >= ft_strlen(s))
			return (ft_strdup(""));
		str = malloc((len + 1) * sizeof(char));
		if (!str)
			return (NULL);
		i = 0;
		while (s[start] != '\0' && i < len)
		{
			str[i] = s[start];
			i++;
			start++;
		}
		str[i] = '\0';
	}
	return (str);
}