ft_substr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yeonhkim <yeonhkim@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/07/13 12:11:28 by yeonhkim          #+#    #+#             */
/*   Updated: 2022/08/01 19:53:36 by yeonhkim         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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