42_push_swap/ft_sort.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_sort.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/11/08 19:47:56 by cchauvet          #+#    #+#             */
/*   Updated: 2022/12/01 17:00:04 by cchauvet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "pushswap.h"

static unsigned int	*ft_values_simplifier(int *tab_in, int size)
{
	int				i;
	unsigned int	*out;
	int				max_index;

	out = malloc(sizeof(int) * (size + 1));
	if (out == NULL)
	{
		free(tab_in);
		return (NULL);
	}
	i = 0;
	while (i < size)
	{
		max_index = ft_get_max_index(tab_in, size);
		out[max_index] = (size - i);
		tab_in[max_index] = INT_MIN;
		i++;
	}
	out[size] = STOP_VALUE;
	free (tab_in);
	return (out);
}

static unsigned int	*ft_tab_init(int *tab_in, int size, unsigned **tab_a, unsigned **tab_b)
{
	*tab_b = malloc(sizeof(int) * (size + 1));
	*tab_a = ft_values_simplifier(tab_in, size);
	if (tab_a == NULL || tab_b == NULL)
	{
		free(tab_in);
		free(tab_a);
		free(tab_b);
		return (NULL);
	}
	*(tab_b)[0] = STOP_VALUE;
	return (*tab_a);
}

void	ft_sort(int *tab_in, int size_a)
{
	unsigned int	*tab_a;
	unsigned int	*tab_b;

	tab_b = NULL;
	tab_a = NULL;
	if (ft_tab_init(tab_in, size_a, &tab_a, &tab_b) == NULL)
		return ;
	ft_radix_sort(tab_a, tab_b);
}