UtilLib

2025-08-04 13:20:27 +02:00
commit d215954dec
43 changed files with 1931 additions and 0 deletions
@@ -0,0 +1,101 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   printf_fd.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: yantoine <yantoine@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/11/09 17:02:50 by yantoine          #+#    #+#             */
+/*   Updated: 2024/11/13 23:41:20 by yantoine         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static int	putstr(char *str, char c, int is_char, t_info *info)
+{
+	int	len;
+
+	len = 0;
+	if (is_char)
+		return (write(info->fd, &c, 1));
+	if (!str)
+		str = "(null)";
+	while (str[len])
+		len++;
+	return (write(info->fd, str, len));
+}
+
+static int	putnbr_b(t_lu n, char *str, int numdig, t_info *info)
+{
+	if (n > (t_lu)info->base - 1)
+		numdig += putnbr_b(n / info->base, str, numdig, info);
+	putstr(NULL, str[n % info->base], CHAR, info);
+	return (++numdig);
+}
+
+static int	treat_int(int n, char *str, int numdig, t_info *info)
+{
+	int		nb;
+	long	signal;
+
+	info->base = 10;
+	nb = n;
+	signal = 1;
+	if (nb < 0)
+		putstr(0, '-', CHAR, info);
+	signal = ((nb > 0) - (nb < 0));
+	return ((n < 0) + putnbr_b(nb * signal, str, numdig, info));
+}
+
+static int	format(const char *str, t_info *info, va_list *args)
+{
+	if (str[info->i] == 'c')
+		return (putstr(0, va_arg(*args, int), CHAR, info));
+	if (str[info->i] == 's')
+		return (putstr(va_arg(*args, char *), 0, STR, info));
+	if (str[info->i] == 'd' || str[info->i] == 'i')
+		return (treat_int(va_arg(*args, int), DEC, 0, info));
+	if (str[info->i] == 'f')
+		return (print_double_fd(va_arg(*args, double), info->fd));
+	if (str[info->i] == 'u')
+	{
+		info->base = 10;
+		return (putnbr_b((t_lu)va_arg(*args, t_ui), DEC, 0, info));
+	}
+	if (str[info->i] == 'x')
+		return (putnbr_b((t_lu)va_arg(*args, t_ui), HEXLO, 0, info));
+	if (str[info->i] == 'X')
+		return (putnbr_b((t_lu)va_arg(*args, t_ui), HEXUP, 0, info));
+	if (str[info->i] == '%')
+		return (putstr(0, '%', CHAR, info));
+	if (str[info->i] == 'p')
+		return (putstr("0x", 0, CHAR, info) + putnbr_b(va_arg(*args, t_lu),
+				HEXLO, 16, 0));
+	return (0);
+}
+
+int	printf_fd(int fd, const char *str, ...)
+{
+	va_list	args;
+	t_info	info;
+
+	va_start(args, str);
+	info.i = 0;
+	info.counter = 0;
+	info.base = 16;
+	info.fd = fd;
+	while (str[info.i])
+	{
+		if (str[info.i] == '%')
+		{
+			info.i++;
+			info.counter += format(str, &info, &args);
+		}
+		else
+			info.counter += putstr(0, str[info.i], CHAR, &info);
+		info.i++;
+	}
+	va_end(args);
+	return (info.counter);
+}