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Refs #2814 (fixed in trunk.)

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[SVN r51518]
This commit is contained in:
Peter Dimov
2009-03-01 18:42:44 +00:00
parent 905a3711db
commit a378c8c278
6 changed files with 112 additions and 240 deletions
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67
include/boost/smart_ptr/intrusive_ptr.hpp
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@@ -63,13 +63,13 @@ public:
typedef T element_type;
intrusive_ptr(): p_(0)
intrusive_ptr(): px( 0 )
{
}
intrusive_ptr(T * p, bool add_ref = true): p_(p)
intrusive_ptr( T * p, bool add_ref = true ): px( p )
{
if(p_ != 0 && add_ref) intrusive_ptr_add_ref(p_);
if( px != 0 && add_ref ) intrusive_ptr_add_ref( px );
}
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
@@ -84,21 +84,21 @@ public:
intrusive_ptr( intrusive_ptr<U> const & rhs )
#endif
: p_( rhs.get() )
: px( rhs.get() )
{
if( p_ != 0 ) intrusive_ptr_add_ref( p_ );
if( px != 0 ) intrusive_ptr_add_ref( px );
}
#endif
intrusive_ptr(intrusive_ptr const & rhs): p_(rhs.p_)
intrusive_ptr(intrusive_ptr const & rhs): px( rhs.px )
{
if(p_ != 0) intrusive_ptr_add_ref(p_);
if( px != 0 ) intrusive_ptr_add_ref( px );
}
~intrusive_ptr()
{
if(p_ != 0) intrusive_ptr_release(p_);
if( px != 0 ) intrusive_ptr_release( px );
}
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
@@ -135,63 +135,34 @@ public:
T * get() const
{
return p_;
return px;
}
T & operator*() const
{
BOOST_ASSERT( p_ != 0 );
return *p_;
BOOST_ASSERT( px != 0 );
return *px;
}
T * operator->() const
{
BOOST_ASSERT( p_ != 0 );
return p_;
BOOST_ASSERT( px != 0 );
return px;
}
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
operator bool () const
{
return p_ != 0;
}
#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
typedef T * (this_type::*unspecified_bool_type)() const;
operator unspecified_bool_type() const // never throws
{
return p_ == 0? 0: &this_type::get;
}
#else
typedef T * this_type::*unspecified_bool_type;
operator unspecified_bool_type () const
{
return p_ == 0? 0: &this_type::p_;
}
#endif
// operator! is a Borland-specific workaround
bool operator! () const
{
return p_ == 0;
}
// implicit conversion to "bool"
#include <boost/smart_ptr/detail/operator_bool.hpp>
void swap(intrusive_ptr & rhs)
{
T * tmp = p_;
p_ = rhs.p_;
rhs.p_ = tmp;
T * tmp = px;
px = rhs.px;
rhs.px = tmp;
}
private:
T * p_;
T * px;
};
template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, intrusive_ptr<U> const & b)