convertbase.c

//cc -Wall -Wextra -Werror ft_putnbr_base.c
// tamakhlo@c4a2c8 ~/.ssh/c04/ex04
 
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_putnbr_base.c                                   :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tamakhlo <tamakhlo@student.42berlin.d      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2026/02/22 16:15:31 by tamakhlo          #+#    #+#             */
/*   Updated: 2026/02/22 20:32:17 by sgehrman         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
#include <unistd.h>
 
char    convert(int num, int base);
void convert_num(int num, int base, char *res);
int	main(void)
{	
	int	i;
	int	b;
	char	tnum[42] = "";
 
	i = 15;
	b = 16;
//	*tnum = ""; 
	convert_num(6, 10, tnum); // index 0
	convert_num(1, 2, tnum);
	convert_num(12, 16, tnum);
	convert_num(11, 16, tnum);
	convert_num(10, 16, tnum);
	convert_num(10, 16, tnum);
	convert_num(10, 16, tnum);
 
	convert_num(i, b, tnum); // index 7
	write (1, "\n-", 2);
	write (1, &tnum[7] ,1);
	write (1, "-\n", 2);
	return (0);
}
 
char	digit(int num, int base)
{
	int	result;
 
 
	result = "0123456789ABCDEF"[num%base];
	//write (1, &result ,1);
	return (result+'\0');
}
void	convert_num(int num, int base, char *res)
{
	//int	counter;
	int usedlen;
	char c;
	char *pc;
 
	usedlen = 0;
 
	while(res[usedlen] != '\0')
		usedlen++;
 
		write (1, &res[usedlen] ,1);
	c = usedlen + '0'; // usedlen is 2 index ist 1
	write (1, "\n", 1);
	write (1, &c, 1);  // '2'
	write (1, "<-len\n=", 7);
// because of usedlen++ = 3 but next-index = 1 Value like last call convert_num()
	pc = res;
	while(*pc != '\0')
		write (1, pc++, 1);   // all digits in res display in terminal in al line so far
 
	//while (base <= num)
	{
		res[usedlen] = digit(num,base);
		//write (1,&res[counter] ,2);
		//usedlen++;
	}
	res[usedlen +1] = '\0';
//	return(res);
}

Hi Ines platziere den code hier im code block!!!

sourcecodeInes.c