test/std/containers/sequences/vector.bool/default_noexcept.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // <vector>
  11
  12 // vector<bool>()
  13 //        noexcept(is_nothrow_default_constructible<allocator_type>::value);
  14
  15 // This tests a conforming extension
  16
  17 // UNSUPPORTED: c++98, c++03
  18
  19 #include <vector>
  20 #include <cassert>
  21
  22 #include "test_macros.h"
  23 #include "test_allocator.h"
  24
  25 template <class T>
  26 struct some_alloc
  27 {
  28     typedef T value_type;
  29     some_alloc(const some_alloc&);
  30 };
  31
  32 int main()
  33 {
  34 #if defined(_LIBCPP_VERSION)
  35     {
  36         typedef std::vector<bool> C;
  37         static_assert(std::is_nothrow_default_constructible<C>::value, "");
  38     }
  39     {
  40         typedef std::vector<bool, test_allocator<bool>> C;
  41         static_assert(std::is_nothrow_default_constructible<C>::value, "");
  42     }
  43 #endif // _LIBCPP_VERSION
  44     {
  45         typedef std::vector<bool, other_allocator<bool>> C;
  46         static_assert(!std::is_nothrow_default_constructible<C>::value, "");
  47     }
  48     {
  49         typedef std::vector<bool, some_alloc<bool>> C;
  50         static_assert(!std::is_nothrow_default_constructible<C>::value, "");
  51     }
  52 }