Beispiele 12.10.2023

20231012/loops-01.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 1;
+  do
+   {
+     if (a <= 10)
+       {
+         printf ("%d\n", a);
+         a++;
+       }
+   }
+  while (a <= 10);
+  return 0;
+}

20231012/loops-02.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 11;
+  do
+   {
+     if (a <= 10)
+       {
+         printf ("%d\n", a);
+         a++;
+       }
+   }
+  while (a <= 10);
+  return 0;
+}

20231012/loops-03.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 11;
+  if (a <= 10)
+    {
+      do
+        {
+          printf ("%d\n", a);
+          a++;
+        }
+      while (a <= 10);
+    }
+  return 0;
+}

20231012/pointers-01.c

+#include <stdio.h>
+
+void calc_answer (int *a)
+{
+  *a = 42;
+}
+
+int main (void)
+{
+  int answer;
+  calc_answer (&answer);
+  printf ("The answer is %d.\n", answer);
+  return 0;
+}

20231012/printf-01.c

+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+  int answer = 42;
+  printf ("Die Antwort lautet: ");
+  printf (answer);
+  printf ("\n");
+  return 0;
+}

20231012/printf-02.c

+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+  uint64_t answer = 42;
+  printf ("Die Antwort lautet: ");
+  printf (answer);
+  printf ("\n");
+  return 0;
+}

20231012/printf-03.c

+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+  uint64_t answer = "zweiundvierzig";
+  printf ("Die Antwort lautet: ");
+  printf (answer);
+  printf ("\n");
+  return 0;
+}

20231012/printf-04.c

+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+  uint64_t answer = &answer;
+  printf ("Die Antwort lautet: ");
+  printf (answer);
+  printf ("\n");
+  return 0;
+}

20231012/side-effects-01.c

+#include <stdio.h>
+
+int main (void)
+{
+  printf ("Hello, world!\n");
+  "Hello, world!\n";
+  return 0;
+}

20231012/side-effects-02.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = printf ("Hello, world!\n");
+  printf ("%d\n", a);
+  return 0;
+}

20231012/side-effects-03.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  int b = 5;
+  printf ("%d\n", a += b);
+  return 0;
+}

20231012/side-effects-04.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  int b = 5;
+  printf ("%d\n", a += b);
+  printf ("%d\n", a);
+  printf ("%d\n", b);
+  return 0;
+}

20231012/side-effects-05.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  int b = 5;
+  printf ("%d\n", a + b);
+  printf ("%d\n", a);
+  printf ("%d\n", b);
+  return 0;
+}

20231012/side-effects-06.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  printf ("%d\n", a = 7);
+  return 0;
+}

20231012/side-effects-07.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  printf ("%d\n", a + 7);
+  return 0;
+}

20231012/side-effects-08.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  printf ("%d\n", a == 7);
+  return 0;
+}

20231012/side-effects-09.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  printf ("%d\n", a == 3);
+  return 0;
+}

20231012/side-effects-10.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  a = 3,14;
+  printf ("%d\n", a);
+  return 0;
+}

20231012/side-effects-11.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  a = (3,14);
+  printf ("%d\n", a);
+  return 0;
+}

20231012/side-effects-12.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 3;
+  a = 3.14;
+  printf ("%d\n", a);
+  return 0;
+}