File: address-packed-member-memops.c

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (26 lines) | stat: -rw-r--r-- 560 bytes parent folder | download | duplicates (32) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
// RUN: %clang_cc1 -fsyntax-only -verify %s
// expected-no-diagnostics

struct B {
  int x, y, z, w;
} b;

struct __attribute__((packed)) A {
  struct B b;
} a;

typedef __typeof__(sizeof(int)) size_t;

void *memcpy(void *dest, const void *src, size_t n);
int memcmp(const void *s1, const void *s2, size_t n);
void *memmove(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);

int x;

void foo(void) {
  memcpy(&a.b, &b, sizeof(b));
  memmove(&a.b, &b, sizeof(b));
  memset(&a.b, 0, sizeof(b));
  x = memcmp(&a.b, &b, sizeof(b));
}