[util.smartptr.hash]

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@105393 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant 2010-06-03 16:42:57 +00:00
parent ed30e070ac
commit 21aefc3a61
6 changed files with 61 additions and 11 deletions

View File

@ -1834,16 +1834,7 @@ struct hash<long double>
}
};
template<class _Tp>
struct hash<_Tp*>
: public unary_function<_Tp*, size_t>
{
size_t operator()(_Tp* __v) const
{
const size_t* const __p = reinterpret_cast<const size_t*>(&__v);
return *__p;
}
};
// struct hash<T*> in <memory>
_LIBCPP_END_NAMESPACE_STD

View File

@ -2463,6 +2463,31 @@ inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x < __y);}
template <class> struct hash;
template<class _Tp>
struct hash<_Tp*>
: public unary_function<_Tp*, size_t>
{
size_t operator()(_Tp* __v) const
{
const size_t* const __p = reinterpret_cast<const size_t*>(&__v);
return *__p;
}
};
template <class _Tp, class _Dp>
struct hash<unique_ptr<_Tp, _Dp> >
{
typedef unique_ptr<_Tp, _Dp> argument_type;
typedef size_t result_type;
result_type operator()(const argument_type& __ptr) const
{
typedef typename argument_type::pointer pointer;
return hash<pointer>()(__ptr.get());
}
};
struct __destruct_n
{
private:
@ -3785,6 +3810,17 @@ public:
template <class _Up> friend class shared_ptr;
};
template <class _Tp>
struct hash<shared_ptr<_Tp> >
{
typedef shared_ptr<_Tp> argument_type;
typedef size_t result_type;
result_type operator()(const argument_type& __ptr) const
{
return hash<_Tp*>()(__ptr.get());
}
};
//enum class
struct pointer_safety
{

View File

@ -235,7 +235,7 @@ __call_once(volatile unsigned long& flag, void* arg, void(*func)(void*))
pthread_mutex_lock(&mut);
flag = 0ul;
pthread_mutex_unlock(&mut);
pthread_cond_signal(&cv);
pthread_cond_broadcast(&cv);
throw;
}
}

View File

@ -0,0 +1 @@
//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <memory> // template <class T> // struct hash<shared_ptr<T>> // { // typedef shared_ptr<T> argument_type; // typedef size_t result_type; // size_t operator()(const shared_ptr<T>& p) const; // }; #include <memory> #include <cassert> int main() { int* ptr = new int; std::shared_ptr<int> p(ptr); std::hash<std::shared_ptr<int> > f; std::size_t h = f(p); assert(h == std::hash<int*>()(ptr)); }

View File

@ -0,0 +1 @@
//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <memory> // template <class T, class D> // struct hash<unique_ptr<T, D>> // { // typedef unique_ptr<T, D> argument_type; // typedef size_t result_type; // size_t operator()(const unique_ptr<T, D>& p) const; // }; #include <memory> #include <cassert> int main() { int* ptr = new int; std::unique_ptr<int> p(ptr); std::hash<std::unique_ptr<int> > f; std::size_t h = f(p); assert(h == std::hash<int*>()(ptr)); }

View File

@ -0,0 +1,21 @@
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <tuple>
// template<class... Types>
// tuple<ATypes...> pack_arguments(Types&&... t);
#include <tuple>
int main()
{
#error pack_arguments not implemented
}