push_swap/utils.c at master · carolina-tcn/push_swap · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   utils.c                                            :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ctacconi <ctacconi@student.42barcel>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/04/18 18:57:23 by ctacconi          #+#    #+#             */
/*   Updated: 2024/04/25 18:01:20 by ctacconi         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

int	is_digit(char c)
{
	if (c >= '0' && c <= '9')
		return (1);
	return (0);
}

int	ft_strlen(const char *str)
{
	int	i;

	i = 0;
	while (str[i] != '\0')
	{
		i++;
	}
	return (i);
}

int	ft_strncmp(char *s1, char *s2, int n)
{
	int	i;

	i = 0;
	while (i < n)
	{
		if (s1[i] == '\0' || s2[i] == '\0' || s1[i] != s2[i])
			return ((unsigned char)s1[i] - (unsigned char)s2[i]);
		i++;
	}
	return (0);
}

int	ft_atoi(char *str)
{
	int	res;
	int	sign;
	int	i;

	res = 0;
	sign = 1;
	i = 0;
	if (str[i] == '-')
	{
		sign = -1;
		i++;
	}
	while (str[i] >= '0' && str[i] <= '9')
	{
		res = res * 10 + str[i] - '0';
		i++;
	}
	return (res * sign);
}

void	add_elements(t_element *add_element, t_element *tmp, char **argv, int i)
{
	add_element->num = ft_atoi(argv[i]);
	while (tmp->next)
		tmp = tmp->next;
	tmp->next = add_element;
	add_element->next = NULL;
}