clang/test/CXX/except/except.spec/canonical.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
   2 // expected-no-diagnostics
   3
   4 // PR10087: Make sure that we don't conflate exception specifications
   5 // from different functions in the canonical type system.
   6 namespace std
   7 {
   8
   9 template <class _Tp> _Tp&& declval() noexcept;
  10
  11 template <class _Tp, class... _Args>
  12 struct _is_nothrow_constructible
  13 {
  14   static const bool value = noexcept(_Tp(declval<_Args>()...));
  15 };
  16
  17 template<class, class _Traits, class _Allocator>
  18 class basic_string
  19 {
  20 public:
  21   typedef typename _Traits::char_type value_type;
  22   typedef _Allocator allocator_type;
  23
  24   basic_string()
  25       noexcept(_is_nothrow_constructible<allocator_type>::value);
  26 };
  27
  28 template <class, class, class _Compare>
  29 struct __map_value_compare
  30 {
  31 public:
  32   __map_value_compare()
  33       noexcept(_is_nothrow_constructible<_Compare>::value);
  34 };
  35
  36 struct less
  37 {
  38 };
  39
  40 struct map
  41 {
  42   typedef __map_value_compare<int, short, less> __vc;
  43   __vc vc_;
  44 };
  45
  46
  47 template<class T, class _Traits, class _Allocator>
  48 basic_string<T, _Traits, _Allocator>::basic_string() noexcept(_is_nothrow_constructible<allocator_type>::value) {}
  49
  50 template <class T, class Value, class _Compare>
  51 __map_value_compare<T, Value, _Compare>::__map_value_compare()
  52   noexcept(_is_nothrow_constructible<_Compare>::value) {}
  53
  54 }  // std