clang/test/CXX/basic/basic.start/basic.start.init/p2.cpp

   1 // RUN: %clang_cc1 -verify %s -pedantic-errors -std=c++11
   2 // RUN: %clang_cc1 -verify %s -pedantic-errors -std=c++14
   3 // expected-no-diagnostics
   4
   5 struct foo_t {
   6   union {
   7     int i;
   8     volatile int j;
   9   } u;
  10 };
  11
  12 __attribute__((__require_constant_initialization__))
  13 static const foo_t x = {{0}};
  14
  15 union foo_u {
  16   int i;
  17   volatile int j;
  18 };
  19
  20 __attribute__((__require_constant_initialization__))
  21 static const foo_u y = {0};