libft42/ft_substr.c at main · Y4SS3R3/libft42 · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_substr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ymassiou <ymassiou@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/11/04 12:45:21 by ymassiou          #+#    #+#             */
/*   Updated: 2023/11/16 15:37:25 by ymassiou         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	if (s == NULL)
		return (NULL);
	if (start > ft_strlen(s))
		return ((char *)ft_calloc(1, 1));
	if (len > ft_strlen(&s[start]))
		len = ft_strlen(&s[start]);
	i = 0;
	result = NULL;
	result = (char *)malloc(len + 1);
	if (result == NULL)
		return (NULL);
	while (i < len)
	{
		result[i] = s[start + i];
		i++;
	}
	result[len] = 0;
	return (result);
}