ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: bregneau <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/11/27 11:52:04 by bregneau          #+#    #+#             */
/*   Updated: 2021/11/27 12:53:07 by bregneau         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	i = ft_strlen(s);
	if (start > i)
		len = 0;
	else if (i - start < len)
		len = i - start;
	str = ft_calloc((len + 1), sizeof(char));
	if (!str)
		return (NULL);
	i = 0;
	while (i < len)
	{
		str[i] = s[start + i];
		i++;
	}
	return (str);
}