utilities_2.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   utilities_2.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: natamazy <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/02/13 15:55:44 by natamazy          #+#    #+#             */
/*   Updated: 2024/02/22 17:19:34 by natamazy         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

int	ft_isdigit(int c)
{
	if ((c >= 48 && c <= 57))
		return (1);
	return (0);
}

int	ft_str_isdigit(char *str)
{
	int	i;

	i = 0;
	while (str[i])
	{
		if (ft_isdigit(str[i]) == 0)
			return (0);
		i++;
	}
	return (1);
}

int	print_error(char *message)
{
	ft_putstr(message, 2);
	return (1);
}

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

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

void	ft_lstclear(t_list **lst)
{
	t_list	*t;
	t_list	*l;

	if (!lst)
		return ;
	l = *lst;
	while (l)
	{
		t = l->next;
		free(l);
		l = t;
	}
	*lst = NULL;
}