Update for issue 2260

Author: Colin Robertson

docs/cpp/com-ptr-t-extractors.md

@@ -1,19 +1,20 @@
 ---
 title: "_com_ptr_t Extractors"
-ms.date: "11/04/2016"
+description: "Describes the extraction operators for the _com_ptr_t class."
+ms.date: 07/07/2020
 f1_keywords: ["_com_ptr_t::operatorInterface&", "_com_ptr_t::operatorbool", "_com_ptr_t::operator->", "_com_ptr_t::operator*"]
 helpviewer_keywords: ["operator Interface& [C++]", "* operator [C++], with specific objects", "operator& [C++]", "operator* [C++]", "-> operator [C++], with specific objects", "& operator [C++], with specific objects", "operator Interface* [C++]", "operator * [C++]", "operator->", "operator bool", "extractors, _com_ptr_t class", "extractors [C++]"]
 ms.assetid: 194b9e0e-123c-49ff-a187-0a7fcd68145a
 ---
-# _com_ptr_t Extractors
+# `_com_ptr_t` Extractors
 
-**Microsoft Specific**
+**Microsoft-specific**
 
 Extract the encapsulated COM interface pointer.
 
 ## Syntax
 
-```
+```c++
 operator Interface*( ) const throw( );
 operator Interface&( ) const;
 Interface& operator*( ) const;
@@ -24,20 +25,21 @@ operator bool( ) const throw( );
 
 ## Remarks
 
-- **operator Interface**<strong>\*</strong> Returns the encapsulated interface pointer, which may be NULL.
+- **`operator Interface*`** Returns the encapsulated interface pointer, which may be NULL.
 
-- **operator Interface&** Returns a reference to the encapsulated interface pointer, and issues an error if the pointer is NULL.
+- **`operator Interface&`** Returns a reference to the encapsulated interface pointer, and issues an error if the pointer is NULL.
 
-- **operator**<strong>\*</strong> Allows a smart pointer object to act as though it were the actual encapsulated interface when dereferenced.
+- **`operator*`** Allows a smart pointer object to act as though it were the actual encapsulated interface when dereferenced.
 
-- **operator->** Allows a smart pointer object to act as though it were the actual encapsulated interface when dereferenced.
+- **`operator->`** Allows a smart pointer object to act as though it were the actual encapsulated interface when dereferenced.
 
-- **operator&** Releases any encapsulated interface pointer, replacing it with NULL, and returns the address of the encapsulated pointer. This allows the smart pointer to be passed by address to a function that has an *out* parameter through which it returns an interface pointer.
+- **`operator&`** Releases any encapsulated interface pointer, replacing it with NULL, and returns the address of the encapsulated pointer. This operator allows you to pass the smart pointer by address to a function that has an *out* parameter through which it returns an interface pointer.
 
-- **operator bool** Allows a smart pointer object to be used in a conditional expression. This operator returns TRUE if the pointer is not NULL.
+- **`operator bool`** Allows a smart pointer object to be used in a conditional expression. This operator returns TRUE if the pointer isn't NULL.
 
-**END Microsoft Specific**
+  > [!NOTE]
+  > Because **`operator bool`** is not declared as **`explicit`**, `_com_ptr_t` is implicitly convertible to **`bool`**, which is convertible to any scalar type. This can have unexpected consequences in your code. Enable [Compiler Warning (level 4) C4800](../error-messages/compiler-warnings/compiler-warning-level-3-c4800.md) to prevent unintentional use of this conversion.
 
 ## See also
 
-[_com_ptr_t Class](../cpp/com-ptr-t-class.md)
+[_com_ptr_t class](../cpp/com-ptr-t-class.md)