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Add copy constructor/assignment - in C++0x, move disables implicit copy.

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[SVN r73202]
This commit is contained in:
Peter Dimov
2011-07-17 20:35:44 +00:00
parent b4b415553c
commit 7e9664396a
3 changed files with 47 additions and 3 deletions
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18
include/boost/smart_ptr/weak_ptr.hpp
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@@ -40,8 +40,24 @@ public:
{
}
// generated copy constructor, assignment, destructor are fine
// generated copy constructor, assignment, destructor are fine...
#if defined( BOOST_HAS_RVALUE_REFS )
// ... except in C++0x, move disables the implicit copy
weak_ptr( weak_ptr const & r ): px( r.px ), pn( r.pn ) // never throws
{
}
weak_ptr & operator=( weak_ptr const & r ) // never throws
{
px = r.px;
pn = r.pn;
return *this;
}
#endif
//
// The "obvious" converting constructor implementation: