From e50a7faac600da70a5486a897460349160cec62e Mon Sep 17 00:00:00 2001
From: paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sat, 6 Nov 2010 00:11:57 +0000
Subject: 2010-11-05  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/shared_ptr.h (shared_ptr<>::__shared_ptr(),
	shared_ptr<>::shared_ptr(nullptr_t), weak_ptr<>::weak_ptr(),
	enable_shared_from_this::enable_shared_from_this()): Add constexpr
	specifier.
	* include/bits/shared_ptr_base.h (__shared_count::__shared_count(),
	__shared_count::__shared_count(), __shared_ptr<>::__shared_ptr(),
	__shared_ptr<>::__shared_ptr(nullptr_t), __weak_ptr<>::__weak_ptr(),
	__enable_shared_from_this::__enable_shared_from_this()): Likewise.
	* include/bits/unique_ptr.h (default_delete,
	unique_ptr<>::unique_ptr(), unique_ptr<>::unique_ptr(nullptr_t)):
	Likewise.
	* testsuite/20_util/default_delete/cons/constexpr.cc: Do not xfail.
	* testsuite/20_util/shared_ptr/cons/constexpr.cc: Remove, the test
	cannot work for a non-literal type like std::shared_ptr.
	* testsuite/20_util/weak_ptr/cons/constexpr.cc: Likewise.
	* testsuite/util/testsuite_common_types.h: Add comments.
	* testsuite/20_util/unique_ptr/cons/constexpr.cc: Likewise.
	* testsuite/20_util/shared_ptr/cons/43820.cc: Adjust dg-error line
	numbers.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166386 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libstdc++-v3/include/bits/shared_ptr_base.h | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

(limited to 'libstdc++-v3/include/bits/shared_ptr_base.h')

diff --git a/libstdc++-v3/include/bits/shared_ptr_base.h b/libstdc++-v3/include/bits/shared_ptr_base.h
index 4a30ea4da6a..d39050fcc8d 100644
--- a/libstdc++-v3/include/bits/shared_ptr_base.h
+++ b/libstdc++-v3/include/bits/shared_ptr_base.h
@@ -443,7 +443,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
     class __shared_count
     {
     public:
-      __shared_count() : _M_pi(0) // nothrow
+      constexpr __shared_count() : _M_pi(0) // nothrow
       { }
 
       template<typename _Ptr>
@@ -635,7 +635,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
     class __weak_count
     {
     public:
-      __weak_count() : _M_pi(0) // nothrow
+      constexpr __weak_count() : _M_pi(0) // nothrow
       { }
 
       __weak_count(const __shared_count<_Lp>& __r) : _M_pi(__r._M_pi) // nothrow
@@ -751,11 +751,13 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
     public:
       typedef _Tp   element_type;
 
-      __shared_ptr() : _M_ptr(0), _M_refcount() // never throws
+      constexpr __shared_ptr()
+      : _M_ptr(0), _M_refcount() // never throws
       { }
 
       template<typename _Tp1>
-	explicit __shared_ptr(_Tp1* __p) : _M_ptr(__p), _M_refcount(__p)
+	explicit __shared_ptr(_Tp1* __p)
+        : _M_ptr(__p), _M_refcount(__p)
 	{
 	  __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
 	  static_assert( sizeof(_Tp1) > 0, "incomplete type" );
@@ -856,7 +858,8 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
 #endif
 
       /* TODO: use delegating constructor */
-      __shared_ptr(nullptr_t) : _M_ptr(0), _M_refcount() // never throws
+      constexpr __shared_ptr(nullptr_t)
+      : _M_ptr(0), _M_refcount() // never throws
       { }
 
       template<typename _Tp1>
@@ -1163,7 +1166,8 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
     public:
       typedef _Tp element_type;
 
-      __weak_ptr() : _M_ptr(0), _M_refcount() // never throws
+      constexpr __weak_ptr()
+      : _M_ptr(0), _M_refcount() // never throws
       { }
 
       // Generated copy constructor, assignment, destructor are fine.
@@ -1324,7 +1328,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
     class __enable_shared_from_this
     {
     protected:
-      __enable_shared_from_this() { }
+      constexpr __enable_shared_from_this() { }
 
       __enable_shared_from_this(const __enable_shared_from_this&) { }
 
-- 
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