files dans srcs sans dossier

2020-02-10 10:25:04 +01:00
parent e9c7619e97
commit 52eaaddb0d
76 changed files with 10 additions and 12 deletions
--- a/srcs/ft_convertbase.c
+++ b/srcs/ft_convertbase.c
@@ -0,0 +1,86 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_convertbase.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2018/11/16 15:15:55 by hulamy            #+#    #+#             */
+/*   Updated: 2019/04/17 17:09:35 by hulamy           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static int	ft_malloc_size(int decimal, int length, int i)
+{
+	if (decimal <= 0)
+		i++;
+	while (decimal)
+	{
+		decimal /= length;
+		i++;
+	}
+	return (i);
+}
+
+static char	*ft_decimal_to_base(int decimal, char *base, char *res, int size)
+{
+	long	nb;
+	int		i;
+
+	nb = decimal;
+	i = 0;
+	while (base[i])
+		i++;
+	if (nb < 0)
+		nb = -nb;
+	while (--size >= 0)
+	{
+		res[size] = base[nb % i];
+		nb /= i;
+	}
+	return (res);
+}
+
+static int	ft_base_to_decimal(char *nbr, char *base, int length, int i)
+{
+	long	decimal;
+	int		j;
+
+	decimal = 0;
+	if (nbr[i] == '-')
+		i++;
+	while (nbr[i])
+	{
+		j = 0;
+		while (nbr[i] != base[j] && base[j])
+			j++;
+		decimal = (decimal * length) + j;
+		i++;
+	}
+	if (nbr[0] == '-')
+		decimal = -decimal;
+	return (decimal);
+}
+
+char		*ft_convertbase(char *nbr, char *base_from, char *base_to)
+{
+	int		length;
+	int		size;
+	int		decimal;
+	char	*res;
+
+	res = 0;
+	length = 0;
+	while (base_from[length])
+		length++;
+	decimal = ft_base_to_decimal(nbr, base_from, length, 0);
+	length = 0;
+	while (base_to[length])
+		length++;
+	size = ft_malloc_size(decimal, length, 0);
+	res = (char *)malloc(sizeof(char) * (size + 1));
+	res[size] = '\0';
+	return (ft_decimal_to_base(decimal, base_to, res, size));
+}