ft_printf/libftprintf/ft_vprintf_pointer.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_vprintf_pointer.c                               :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: gbaconni@student.42lausanne.ch             +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/01/20 11:56:16 by gbaconni          #+#    #+#             */
/*   Updated: 2022/04/15 20:54:31 by gbaconni         ###   lausanne.ch       */
/*                                                                            */
/* ************************************************************************** */

#include "libftprintf.h"

int	ft_vprintf_pointer(const char *format, va_list ap)
{
	int			ret;
	int			len;
	void		*p;
	char		*s;

	(void) format;
	ret = 0;
	len = 0;
	p = va_arg(ap, void *);
	if (p == NULL)
	{
		len = ft_strlen(NIL);
		write(1, NIL, len);
		return (len);
	}
	s = ft_ltoa_base((long) p, "0123456789abcdef");
	len = ft_strlen(s);
	write(1, "0x", 2);
	write(1, s, len);
	ret += len + 2;
	free(s);
	return (ret);
}