ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: retahri <retahri@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/31 05:18:14 by retahri           #+#    #+#             */
/*   Updated: 2024/11/02 14:58:49 by retahri          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	idx = 0;
	if (!s || len == 0)
		return (ft_strdup(""));
	if (start >= ft_strlen(s))
		return (ft_strdup(""));
	if (len > ft_strlen(s) - start)
		len = ft_strlen(s) - start;
	str = malloc(len + 1);
	if (!str)
		return (ft_strdup(""));
	while (s[start] && idx < len)
	{
		str[idx] = s[start];
		idx++;
		start++;
	}
	str[idx] = '\0';
	return (str);
}