weitere Beispielprogramme 16.10.2017

20171016/chars-1.c

+#include <stdio.h>
+
+int main (void)
+{
+  printf ('A');
+  return 0;
+}

20171016/chars-2.c

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

20171016/chars-3.c

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

20171016/chars-4.c

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

20171016/chars-5.c

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

20171016/chars-6.c

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

20171016/chars-7.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a = 'K';
+  a += 'a' - 'A';
+  printf ("%c\n", a);
+  return 0;
+}

20171016/comma-1.c

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

20171016/comma-2.c

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

20171016/comma-3.c

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

20171016/comma-operator-3.c

+#include <stdio.h>
+
+int main (void)
+{
+  for (int i = 0, j = 0; i < 3 && j < 3; i++, i < 3 ? 42 : j++)
+    printf ("%d, %d\n", i, j);
+  return 0;
+}

20171016/comma-operator-4.c

+#include <stdio.h>
+
+int main (void)
+{
+  for (int i = 0, j = 0; i < 3 && j < 3; i++, i < 3 ? 42 : i = 0, j++)
+    printf ("%d, %d\n", i, j);
+  return 0;
+}

20171016/comma-operator-5.c

+#include <stdio.h>
+
+int main (void)
+{
+  for (int i = 0, j = 0; i < 3 && j < 3; i++, i < 3 ? 42 : (i = 0, j++))
+    printf ("%d, %d\n", i, j);
+  return 0;
+}

20171016/comma-operator-6.c

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

20171016/functions-1.c

+#include <stdio.h>
+
+int a, b = 3;
+
+void foo (void)
+{
+  b++;
+  static int a = 5;
+  int b = 7;
+  printf ("foo(): a = %d, b = %d\n", a, b);
+  a++;
+}
+
+int main (void)
+{
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  a = b = 12;
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+}

20171016/functions-2.c

+#include <stdio.h>
+
+int a = 0;
+int b = 3;
+
+void foo (void)
+{
+  b++;
+  static int a = 5;
+  int b = 7;
+  printf ("foo(): a = %d, b = %d\n", a, b);
+  a++;
+}
+
+int main (void)
+{
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  a = b = 12;
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+}

20171016/functions-3.c

+#include <stdio.h>
+
+int a = 0;
+int b = 3;
+
+void foo (void)
+{
+  b++;
+  static int a = 5;
+  int b = 7;
+  printf ("foo(): a = %d, b = %d\n", a, b);
+  a++;
+}
+
+int main (void)
+{
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  return 0;
+
+  printf ("main(): a = %d, b = %d\n", a, b);
+  a = b = 12;
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+}

20171016/functions-4.c

+#include <stdio.h>
+
+int a = 0;
+int b = 3;
+
+void foo (void)
+{
+  b++;
+  static int a = 5;
+  int b = 7;
+  printf ("foo(): a = %d, b = %d\n", a, b);
+  a++;
+}
+
+int main (void)
+{
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+
+  a = b = 12;
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+}

20171016/functions-5.c

+#include <stdio.h>
+
+int a = 0;
+int b = 3;
+
+void foo (void)
+{
+  b++;
+  static int a = 5;
+  int b = 7;
+  printf ("foo(): a = %d, b = %d\n", a, b);
+  a++;
+}
+
+int main (void)
+{
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  a = b = 12;
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+}

20171016/functions-6.c

+#include <stdio.h>
+
+int a = 0;
+int b = 3;
+
+void foo (void)
+{
+  b++;
+  static int a = 5;
+  int b = 7;
+  printf ("foo(): a = %d, b = %d\n", a, b);
+  a++;
+}
+
+int main (void)
+{
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  printf ("main(): a = %d, b = %d\n", a, b);
+  a = b = 12;
+  printf ("main(): a = %d, b = %d\n", a, b);
+  foo ();
+  return 0;
+
+  printf ("main(): a = %d, b = %d\n", a, b);
+  return 0;
+}