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Add mixed shared_count/weak_count operator== overloads to avoid refcount manipulation

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Peter Dimov
2020-05-31 22:07:36 +03:00
parent 58915ca2fe
commit 4b724ab3f8
1 changed files with 16 additions and 4 deletions
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20
include/boost/smart_ptr/detail/shared_count.hpp
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@@ -489,11 +489,13 @@ public:
return pi_ == 0; return pi_ == 0;
} }
friend inline bool operator==(shared_count const & a, shared_count const & b) BOOST_SP_NOEXCEPT bool operator==( shared_count const & r ) const BOOST_SP_NOEXCEPT
{ {
return a.pi_ == b.pi_; return pi_ == r.pi_;
} }
bool operator==( weak_count const & r ) const BOOST_SP_NOEXCEPT;
bool operator<( shared_count const & r ) const BOOST_SP_NOEXCEPT bool operator<( shared_count const & r ) const BOOST_SP_NOEXCEPT
{ {
return std::less<sp_counted_base *>()( pi_, r.pi_ ); return std::less<sp_counted_base *>()( pi_, r.pi_ );
@@ -622,9 +624,14 @@ public:
return pi_ == 0; return pi_ == 0;
} }
friend inline bool operator==(weak_count const & a, weak_count const & b) BOOST_SP_NOEXCEPT bool operator==( weak_count const & r ) const BOOST_SP_NOEXCEPT
{ {
return a.pi_ == b.pi_; return pi_ == r.pi_;
}
bool operator==( shared_count const & r ) const BOOST_SP_NOEXCEPT
{
return pi_ == r.pi_;
} }
bool operator<( weak_count const & r ) const BOOST_SP_NOEXCEPT bool operator<( weak_count const & r ) const BOOST_SP_NOEXCEPT
@@ -660,6 +667,11 @@ inline shared_count::shared_count( weak_count const & r, sp_nothrow_tag ) BOOST_
} }
} }
inline bool shared_count::operator==( weak_count const & r ) const BOOST_SP_NOEXCEPT
{
return pi_ == r.pi_;
}
inline bool shared_count::operator<( weak_count const & r ) const BOOST_SP_NOEXCEPT inline bool shared_count::operator<( weak_count const & r ) const BOOST_SP_NOEXCEPT
{ {
return std::less<sp_counted_base *>()( pi_, r.pi_ ); return std::less<sp_counted_base *>()( pi_, r.pi_ );