aufgabe1 ohne ein paar punkte

This commit is contained in:
f0tt3r 2026-06-08 20:27:18 +02:00
commit b693bae6e0
3 changed files with 41 additions and 0 deletions

BIN
hallo Executable file

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hallo-welt.c Normal file
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#include "hallo-welt.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#ifndef HALLO
#define HALLO "Hallo Welt"
#endif
void hallo_welt(void) { printf(HALLO); }
// use more then one int type
const char *binaerzahl(uint8_t bin) {
char *str = malloc(sizeof(bin) * 8 +
1); // Allocate 8 bits for actual data and 1 Bit for the \0
// sign indicating the end of the string
if (!str)
return NULL;
uint8_t bb;
printf("sizeof(bin) = %lu\n", sizeof(bin) * 8);
for (int i = sizeof(bin) * 8 - 1; i >= 0; i--) {
bb = bin >> i;
str[i] = (bb % 2 == 1) ? 1 : 0;
printf("%d", str[i]);
}
str[sizeof(bin)] = '\0';
return str;
}
int main(void) {
// hallo_welt();
char *in;
printf(binaerzahl(8));
}

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hallo-welt.h Normal file
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#include <stdio.h>
#ifndef HALLO
#define HALLO "Hallo Welt!"
#else
printf("HALLO ist schon definiert!");
#endif