File: no_unique_address6.C

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (25 lines) | stat: -rw-r--r-- 454 bytes parent folder | download | duplicates (2)
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
// PR c++/95976
// { dg-do compile { target c++20 } }

struct empty {};

union no_attribute_t
{
  empty _0;
  empty _1;
};

union with_attribute_t
{
  [[no_unique_address]] empty _0;
  [[no_unique_address]] empty _1;
};

constexpr no_attribute_t no_attribute{};
constexpr with_attribute_t with_attribute{};

// This succeeds
static_assert( &no_attribute._0 == &no_attribute._1 );

// This fails
static_assert( &with_attribute._0 == &with_attribute._1 );