ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: esuguimo <esuguimo@student.42sp.org.br>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/02/06 23:45:40 by esuguimo          #+#    #+#             */
/*   Updated: 2020/02/21 01:38:01 by esuguimo         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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