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Test experimental::shared_ptr construction from other smart pointers 

* testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc:
	Add tests for valid and invalid conversions.
	* testsuite/experimental/memory/shared_ptr/cons/weak_ptr_ctor.cc:
	Likewise.

From-SVN: r241340
This commit is contained in:
Jonathan Wakely 2016-10-19 12:57:22 +01:00 committed by Jonathan Wakely
parent cbb22e6143
commit a04df2babb
3 changed files with 66 additions and 5 deletions
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5
libstdc++-v3/ChangeLog
View File

@ -1,5 +1,10 @@
2016-10-19 Jonathan Wakely <jwakely@redhat.com>
* testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc:
Add tests for valid and invalid conversions.
* testsuite/experimental/memory/shared_ptr/cons/weak_ptr_ctor.cc:
Likewise.
* testsuite/20_util/unique_ptr/cons/cv_qual.cc: Move negative tests
to new file.
* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: New file. Fix

25
libstdc++-v3/testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc
View File

@ -29,10 +29,35 @@ struct A : std::experimental::enable_shared_from_this<A>
~A() { ++destroyed; }
};
struct B : A { };
// 8.2.1.1 shared_ptr constructors [memory.smartptr.shared.const]
// Construction from unique_ptr<A[]>
template<typename From, typename To>
constexpr bool constructible()
{
using std::experimental::shared_ptr;
using std::experimental::is_constructible_v;
using std::unique_ptr;
return is_constructible_v<shared_ptr<To>, unique_ptr<From>>;
}
static_assert( constructible< A, A >(), "A -> A compatible" );
static_assert( !constructible< A, A[] >(), "A -> A[] not compatible" );
static_assert( !constructible< A, A[1] >(), "A -> A[1] not compatible" );
static_assert( !constructible< A[], A >(), "A[] -> A not compatible" );
static_assert( constructible< A[], A[] >(), "A[] -> A[] compatible" );
static_assert( !constructible< A[], A[1] >(), "A[] -> A[1] not compatible" );
static_assert( constructible< B, A >(), "B -> A compatible" );
static_assert( !constructible< B, A[] >(), "B -> A[] not compatible" );
static_assert( !constructible< B, A[1] >(), "B -> A[1] not compatible" );
static_assert( !constructible< B[], A >(), "B[] -> A not compatible" );
static_assert( !constructible< B[], A[] >(), "B[] -> A[] not compatible" );
static_assert( !constructible< B[], A[1] >(), "B[2] -> A[1] not compatible" );
void
test01()
{

41
libstdc++-v3/testsuite/experimental/memory/shared_ptr/cons/weak_ptr_ctor.cc
View File

@ -23,11 +23,46 @@
#include <testsuite_hooks.h>
struct A { };
struct B : A { };
// 8.2.1.1 shared_ptr constructors [memory.smartptr.shared.const]
template<typename From, typename To>
constexpr bool constructible()
{
using std::experimental::shared_ptr;
using std::experimental::weak_ptr;
using std::experimental::is_constructible_v;
return is_constructible_v<shared_ptr<To>, weak_ptr<From>>
&& is_constructible_v<shared_ptr<To>, const weak_ptr<From>&>;
}
static_assert( constructible< A, A >(), "A -> A compatible" );
static_assert( !constructible< A, A[] >(), "A -> A[] not compatible" );
static_assert( !constructible< A, A[1] >(), "A -> A[1] not compatible" );
static_assert( !constructible< A[], A >(), "A[] -> A not compatible" );
static_assert( constructible< A[], A[] >(), "A[] -> A[] compatible" );
static_assert( !constructible< A[], A[1] >(), "A[] -> A[1] not compatible" );
static_assert( !constructible< A[1], A >(), "A[1] -> A not compatible" );
static_assert( constructible< A[1], A[] >(), "A[1] -> A[] compatible" );
static_assert( constructible< A[1], A[1] >(), "A[1] -> A[1] compatible" );
static_assert( !constructible< A[2], A[1] >(), "A[2] -> A[1] not compatible" );
static_assert( constructible< B, A >(), "B -> A compatible" );
static_assert( !constructible< B, A[] >(), "B -> A[] not compatible" );
static_assert( !constructible< B, A[1] >(), "B -> A[1] not compatible" );
static_assert( !constructible< B[], A >(), "B[] -> A not compatible" );
static_assert( !constructible< B[], A[] >(), "B[] -> A[] not compatible" );
static_assert( !constructible< B[], A[1] >(), "B[] -> A[1] not compatible" );
static_assert( !constructible< B[1], A >(), "B[] -> A not compatible" );
static_assert( !constructible< B[1], A[] >(), "B[] -> A[] not compatible" );
static_assert( !constructible< B[1], A[1] >(), "B[] -> A[1] not compatible" );
static_assert( !constructible< B[2], A[1] >(), "B[2] -> A[1] not compatible" );
// Construction from weak_ptr
int
void
test01()
{
A * a = new A[5];
@ -39,14 +74,10 @@ test01()
VERIFY( a3.get() == a );
VERIFY( a2.use_count() == wa.use_count() );
VERIFY( a3.use_count() == wa.use_count() );
return 0;
}
int
main()
{
test01();
return 0;
}