File: has_unique_object_reps_no_unique_addr.cpp

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (42 lines) | stat: -rw-r--r-- 753 bytes parent folder | download | duplicates (16) 
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
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsyntax-only -verify -std=c++2a %s
//  expected-no-diagnostics

struct Empty {};

struct A {
  [[no_unique_address]] Empty e;
  char x;
};

static_assert(__has_unique_object_representations(A));

struct B {
  char x;
  [[no_unique_address]] Empty e;
};

static_assert(__has_unique_object_representations(B));

struct C {
  char x;
  [[no_unique_address]] Empty e1;
  [[no_unique_address]] Empty e2;
};

static_assert(!__has_unique_object_representations(C));

namespace TailPaddingReuse {
struct A {
private:
  int a;

public:
  char b;
};

struct B {
  [[no_unique_address]] A a;
  char c[3];
};
} // namespace TailPaddingReuse
static_assert(__has_unique_object_representations(TailPaddingReuse::B));