libstdc++-v3/testsuite/23_containers/vector/bool/element_access/1.cc

   1 // { dg-do compile { target c++23 } }
   2 // { dg-xfail-if "not supported" { debug_mode } }
   3
   4 #include <vector>
   5 #include <testsuite_hooks.h>
   6
   7 constexpr bool
   8 test01()
   9 {
  10   // P2321R2
  11   // constexpr const reference& vector<bool>::operator=(bool x) const noexcept;
  12
  13   std::vector<bool> v(1);
  14   const auto e = v[0];
  15   e = true;
  16   VERIFY( v[0] );
  17
  18   return true;
  19 }
  20
  21 int
  22 main()
  23 {
  24   static_assert(test01());
  25 }