Beispielprogramme 12.11.2020

20201112/hello-1-O0.s

+	.file	"hello-1.c"
+	.text
+	.section	.rodata
+.LC0:
+	.string	"Hello, world!"
+	.text
+	.globl	main
+	.type	main, @function
+main:
+.LFB0:
+	.cfi_startproc
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	leaq	.LC0(%rip), %rdi
+	call	puts@PLT
+	movl	$0, %eax
+	popq	%rbp
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE0:
+	.size	main, .-main
+	.ident	"GCC: (Debian 8.3.0-6) 8.3.0"
+	.section	.note.GNU-stack,"",@progbits

20201112/hello-1-O1.s

+	.file	"hello-1.c"
+	.text
+	.section	.rodata.str1.1,"aMS",@progbits,1
+.LC0:
+	.string	"Hello, world!"
+	.text
+	.globl	main
+	.type	main, @function
+main:
+.LFB11:
+	.cfi_startproc
+	subq	$8, %rsp
+	.cfi_def_cfa_offset 16
+	leaq	.LC0(%rip), %rdi
+	call	puts@PLT
+	movl	$0, %eax
+	addq	$8, %rsp
+	.cfi_def_cfa_offset 8
+	ret
+	.cfi_endproc
+.LFE11:
+	.size	main, .-main
+	.ident	"GCC: (Debian 8.3.0-6) 8.3.0"
+	.section	.note.GNU-stack,"",@progbits

20201112/hello-1.c

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

20201112/side-effects-1.c

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

20201112/side-effects-10.c

+#include <stdio.h>
+
+int main (void)
+{
+  double pi;
+  pi = 3,1415926535897932384626433;
+  printf ("pi = %lf\n", pi);
+  return 0;
+}

20201112/side-effects-11.c

+#include <stdio.h>
+
+int main (void)
+{
+  double pi;
+  pi = 3,14159265;
+  printf ("pi = %lf\n", pi);
+  return 0;
+}

20201112/side-effects-12.c

+#include <stdio.h>
+
+int main (void)
+{
+  double pi;
+  pi = 3.14159265;
+  printf ("pi = %lf\n", pi);
+  return 0;
+}

20201112/side-effects-13.c

+#include <stdio.h>
+
+int main (void)
+{
+  for (int i = 0; i < 10; printf ("%d\n", i), i++);
+  return 0;
+}

20201112/side-effects-14.c

+#include <stdio.h>
+
+int main (void)
+{
+  double pi = 3,14159265;
+  printf ("pi = %lf\n", pi);
+  return 0;
+}

20201112/side-effects-15.c

+#include <stdio.h>
+
+int main (void)
+{
+  double pi = 3, e = 14159265;
+  printf ("pi = %lf\n", pi);
+  return 0;
+}

20201112/side-effects-16.c

+#include <stdio.h>
+
+int main (void)
+{
+  double pi = (3,14159265);
+  printf ("pi = %lf\n", pi);
+  return 0;
+}

20201112/side-effects-2.c

+#include <stdio.h>
+
+int main (void)
+{
+  printf ("Hello, world!\n");
+  42;
+  return 0;
+}

20201112/side-effects-3.c

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

20201112/side-effects-4.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b, c;
+  a = 10;
+  b = a = 12;
+  c = b++;
+  printf ("a = %d, b = %d, c = %d\n", a, b, c);
+  return 0;
+}

20201112/side-effects-5.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b, c;
+  a = 10;
+  b = a = 12;
+  c = ++b;
+  printf ("a = %d, b = %d, c = %d\n", a, b, c);
+  return 0;
+}

20201112/side-effects-6.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b, c;
+  a = 10;
+  b = a += 12;
+  c = ++b;
+  printf ("a = %d, b = %d, c = %d\n", a, b, c);
+  return 0;
+}

20201112/side-effects-7.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b, c;
+  a = 10;
+  b = a, 42;
+  c = ++b;
+  printf ("a = %d, b = %d, c = %d\n", a, b, c);
+  return 0;
+}

20201112/side-effects-8.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b, c;
+  a = 10;
+  b = (a, 42);
+  c = ++b;
+  printf ("a = %d, b = %d, c = %d\n", a, b, c);
+  return 0;
+}

20201112/side-effects-9.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b, c;
+  a = 10;
+  b = (a = 7, 42);
+  c = ++b;
+  printf ("a = %d, b = %d, c = %d\n", a, b, c);
+  return 0;
+}