UtilLib

ft_putnbr_fd.c

@@ -0,0 +1,87 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putnbr_fd.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: hexplor <marvin@42.fr>                     +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/11/23 14:41:48 by hexplor           #+#    #+#             */
+/*   Updated: 2023/11/27 22:27:06 by hexplor          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static int	ft_n_digit(int n)
+{
+	long	index;
+
+	index = 0;
+	while (n != 0)
+	{
+		n /= 10;
+		index++;
+	}
+	return (index);
+}
+
+static int	ft_pow(int n)
+{
+	long	index;
+
+	index = 1;
+	while (n != 0)
+	{
+		index *= 10;
+		n--;
+	}
+	return (index / 10);
+}
+
+static void	ft_set_number(char *tab)
+{
+	long	index;
+
+	index = 0;
+	while (index != 11)
+	{
+		tab[index] = index + '0';
+		index++;
+	}
+	tab[index] = '\0';
+}
+
+static void	ft_set_digit(long nbr_digit, long n, int fd)
+{
+	char	digit[15];
+	long	pow;
+
+	if (n == 0)
+	{
+		ft_putchar_fd('0', fd);
+		return ;
+	}
+	ft_set_number(digit);
+	pow = ft_pow(nbr_digit);
+	while (nbr_digit != 0)
+	{
+		ft_putchar_fd(digit[(n / pow) % 10], fd);
+		nbr_digit--;
+		pow /= 10;
+	}
+}
+
+void	ft_putnbr_fd(int n, int fd)
+{
+	long	n2;
+	long	nbr_digit;
+
+	n2 = (long) n;
+	nbr_digit = ft_n_digit(n);
+	if (n2 < 0)
+	{
+		ft_putchar_fd('-', fd);
+		n2 *= -1;
+	}
+	ft_set_digit(nbr_digit, n2, fd);
+}