Relational Function Templates

Visual Studio 2015
 

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The latest version of this topic can be found at Relational Function Templates.

Microsoft Specific**

Copy 
  
      template<typename _InterfaceType> bool operator==(  
   int NULL,  
   _com_ptr_t<_InterfaceType>& p   
);  
template<typename _Interface,  
   typename _InterfacePtr> bool operator==(  
   _Interface* i,  
   _com_ptr_t<_InterfacePtr>& p   
);  
template<typename _Interface> bool operator!=(  
   int NULL,  
   _com_ptr_t<_Interface>& p   
);  
template<typename _Interface,  
   typename _InterfacePtr> bool operator!=(  
   _Interface* i,  
   _com_ptr_t<_InterfacePtr>& p   
);  
template<typename _Interface> bool operator<(  
   int NULL,  
   _com_ptr_t<_Interface>& p   
);  
template<typename _Interface,  
   typename _InterfacePtr> bool operator<(  
   _Interface* i,  
   _com_ptr_t<_InterfacePtr>& p   
);  
template<typename _Interface> bool operator>(  
   int NULL,  
   _com_ptr_t<_Interface>& p   
);  
template<typename _Interface,  
   typename _InterfacePtr> bool operator>(  
   _Interface* i,  
   _com_ptr_t<_InterfacePtr>& p   
);  
template<typename _Interface> bool operator<=(  
   int NULL,  
   _com_ptr_t<_Interface>& p   
);  
template<typename _Interface,  
   typename _InterfacePtr> bool operator<=(  
   _Interface* i,  
   _com_ptr_t<_InterfacePtr>& p   
);  
template<typename _Interface> bool operator>=(  
   int NULL,  
   _com_ptr_t<_Interface>& p   
);  
template<typename _Interface,  
   typename _InterfacePtr> bool operator>=(  
   _Interface* i,  
   _com_ptr_t<_InterfacePtr>& p   
);

Parameters

i
A raw interface pointer.

p
A smart pointer.

These function templates allow comparison with a smart pointer on the right side of the comparison operator. These are not member functions of _com_ptr_t.

END Microsoft Specific

_com_ptr_t Class

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