After sleeping on it I've decided that all special members that can be noexcept, should be declared so. The client has the traits to detect and branch on this information, and it is often an important optimization. Give deque() a noexcept. Add test for deque default constructor and deque destructor.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@132549 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/deque b/include/deque
index a492059..71fa7f8 100644
--- a/include/deque
+++ b/include/deque
@@ -38,7 +38,7 @@
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
// construct/copy/destroy:
- deque();
+ deque() noexcept(is_nothrow_default_constructible<allocator_type>::value);
explicit deque(const allocator_type& a);
explicit deque(size_type n);
deque(size_type n, const value_type& v);
@@ -934,7 +934,8 @@
_LIBCPP_INLINE_VISIBILITY
const allocator_type& __alloc() const _NOEXCEPT {return __size_.second();}
- __deque_base();
+ __deque_base()
+ _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
explicit __deque_base(const allocator_type& __a);
public:
~__deque_base();
@@ -1072,6 +1073,7 @@
template <class _Tp, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
__deque_base<_Tp, _Allocator>::__deque_base()
+ _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
: __start_(0), __size_(0) {}
template <class _Tp, class _Allocator>
@@ -1185,7 +1187,10 @@
typedef _STD::reverse_iterator<const_iterator> const_reverse_iterator;
// construct/copy/destroy:
- _LIBCPP_INLINE_VISIBILITY deque() {}
+ _LIBCPP_INLINE_VISIBILITY
+ deque()
+ _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
+ {}
_LIBCPP_INLINE_VISIBILITY deque(const allocator_type& __a) : __base(__a) {}
explicit deque(size_type __n);
deque(size_type __n, const value_type& __v);