ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: arsobrei <arsobrei@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/08/02 13:37:59 by arsobrei          #+#    #+#             */
/*   Updated: 2023/08/02 17:03:14 by arsobrei         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_substr(char const *s, unsigned int start, size_t len)
{
	char	*sub_str;
	size_t	len_s;
	size_t	index;

	len_s = ft_strlen(s);
	if (start >= len_s)
	{
		return (ft_strdup(""));
	}
	if (len > len_s - start)
	{
		len = len_s - start;
	}
	sub_str = (char *)malloc((len + 1) * sizeof(char));
	if (sub_str == NULL)
		return (NULL);
	index = 0;
	while (index < len)
	{
		sub_str[index] = s[start];
		index++;
		start++;
	}
	sub_str[index] = '\0';
	return (sub_str);
}