ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: alouzizi <alouzizi@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/11/11 11:44:51 by alouzizi          #+#    #+#             */
/*   Updated: 2021/11/14 11:35:29 by alouzizi         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"     

char	*ft_substr(char const *s, unsigned int start, size_t len)
{
	char	*s2;
	size_t	i;
	size_t	j;
	size_t	l;

	if (!s)
		return (NULL);
	l = ft_strlen(s + start);
	if (l < len)
		len = l;
	s2 = (char *)malloc(sizeof(char) * (len + 1));
	if (!s2)
		return (NULL);
	i = 0;
	j = 0;
	while (s[i])
	{
		if (i >= start && j < len)
		{
			s2[j++] = s[i];
		}
		i++;
	}
	s2[j] = '\0';
	return (s2);
}