Beispiele, Tafelbild und Screenshot 25.3.2025

20250325/arrays-and-pointers-01.c

+#include <stdio.h>
+
+int main (void)
+{
+  char a[] = "Test";
+  char *p = "Test";
+  printf ("%s\n%s\n", a, p);
+  return 0;
+}

20250325/arrays-and-pointers-02.c

+#include <stdio.h>
+
+int main (void)
+{
+  char a[] = "Test";
+  char *p = "Test";
+  printf ("%d %d %d %d\n", &a, a, &p, p);
+  return 0;
+}

20250325/arrays-and-pointers-03.c

+#include <stdio.h>
+
+int main (void)
+{
+  char a[] = "Test";
+  char *p = "Test";
+  printf ("%z %z %z %z\n", &a, a, &p, p);
+  return 0;
+}

20250325/arrays-and-pointers-04.c

+#include <stdio.h>
+
+int main (void)
+{
+  char a[] = "Test";
+  char *p = "Test";
+  printf ("%zd %zd %zd %zd\n", &a, a, &p, p);
+  return 0;
+}

20250325/arrays-and-pointers-05.c

+#include <stdio.h>
+
+int main (void)
+{
+  char a[] = "Test";
+  char *p = "Test";
+  printf ("%zd %zd %zd %zd\n", (size_t) &a, (size_t) a, (size_t) &p, (size_t) p);
+  return 0;
+}

20250325/arrays-and-pointers-06.c

+#include <stdio.h>
+
+int main (void)
+{
+  char a[] = "Test";
+  char *p = "Test";
+  printf ("%016zx %016zx %016zx %016zx\n", (size_t) &a, (size_t) a, (size_t) &p, (size_t) p);
+  return 0;
+}

20250325/arrays-and-pointers-06.s

+	.file	"arrays-and-pointers-06.c"
+	.text
+	.section	.rodata.str1.1,"aMS",@progbits,1
+.LC0:
+	.string	"Test"
+.LC1:
+	.string	"%016zx %016zx %016zx %016zx\n"
+	.section	.text.startup,"ax",@progbits
+	.p2align 4
+	.globl	main
+	.type	main, @function
+main:
+.LFB11:
+	.cfi_startproc
+	subq	$24, %rsp
+	.cfi_def_cfa_offset 32
+	leaq	.LC0(%rip), %r8        ; #include <stdio.h>
+	leaq	.LC1(%rip), %rdi       ; 
+	xorl	%eax, %eax             ; int main (void)
+	leaq	3(%rsp), %rsi          ; {
+	leaq	8(%rsp), %rcx          ;   char a[] = "Test";
+	movb	$0, 7(%rsp)            ;   char *p = "Test";
+	movq	%rsi, %rdx             ;   printf ("%016zx %016zx %016zx %016zx\n", (size_t) &a, (size_t) a, (size_t) &p, (size_t) p);
+	movl	$1953719636, 3(%rsp)   ;   return 0;
+	movq	%r8, 8(%rsp)           ; }
+	call	printf@PLT             ;      1953719636 = 0x74736554
+	xorl	%eax, %eax             ;                     t s e T
+	addq	$24, %rsp
+	.cfi_def_cfa_offset 8
+	ret
+	.cfi_endproc
+.LFE11:
+	.size	main, .-main
+	.ident	"GCC: (Debian 12.2.0-14) 12.2.0"
+	.section	.note.GNU-stack,"",@progbits