commit b693bae6e0f5108cab1f627958314d9dc982dbd6
Author: f0tt3r <dokyo.kun@mail.ru>
Date:   Mon Jun 8 20:27:18 2026 +0200

    aufgabe1 ohne ein paar punkte

diff --git a/hallo b/hallo
new file mode 100755
index 0000000..ad1cb68
Binary files /dev/null and b/hallo differ
diff --git a/hallo-welt.c b/hallo-welt.c
new file mode 100644
index 0000000..3b48aa9
--- /dev/null
+++ b/hallo-welt.c
@@ -0,0 +1,34 @@
+#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));
+}
diff --git a/hallo-welt.h b/hallo-welt.h
new file mode 100644
index 0000000..d6cf148
--- /dev/null
+++ b/hallo-welt.h
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+#ifndef HALLO
+#define HALLO "Hallo Welt!"
+#else
+printf("HALLO ist schon definiert!");
+#endif