Q122305: PRB: Errors Generated Overloading Operator New []

Article: Q122305
Product(s): Microsoft C Compiler
Version(s): 1.0,1.5,1.51,1.52,2.0,4.0,4.1,4.2,5.0,6.0
Operating System(s): 
Keyword(s): kbLangCPP kbVC100 kbVC150 kbVC151 kbVC152 kbVC200 kbVC410 kbVC420 kbVC500 kbVC600
Last Modified: 11-FEB-2002

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The information in this article applies to:

- Microsoft Visual C++, versions 1.0, 1.5, 1.51, 1.52, 2.0, 4.0, 4.1 
- Microsoft Visual C++, 32-bit Enterprise Edition, versions 4.2, 5.0, 6.0 
- Microsoft Visual C++, 32-bit Professional Edition, versions 4.2, 5.0, 6.0 
- Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
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SYMPTOMS
========

The September 1994 ANSI C++ Draft specifies that it is possible to overload the
new [] operator. However, the Microsoft C/C++ compilers included in the
Microsoft products listed above do not support this feature. Microsoft C/C++
version 7.0 and Visual C++ up to version 5.0 will generate the following error
message:

  error C2092: array element type cannot be function

Microsoft Visual C++, 32-bit edition, version 5.0 generates two error messages:

  error C2039: 'new[]' : is not a member of '`global namespace''

  error C2660: 'new[]' : function does not take 1 parameters

STATUS
======

This behavior is by design.

MORE INFORMATION
================

The source code below can be used to illustrate how to overload the new []
operator, which will generate the error given above.

Sample Code to Reproduce Behavior
---------------------------------

  /* Compile options needed: none
  */ 

  #include <new.h>

  class example
  {
  public:

     void  *operator new [] ( size_t sz, const example& )
        { return( ::operator new [] ( sz )); }
  };

  void main(void)
  {
  }

Additional query words: C2372 C2039 C2660

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Keywords          : kbLangCPP kbVC100 kbVC150 kbVC151 kbVC152 kbVC200 kbVC410 kbVC420 kbVC500 kbVC600 
Technology        : kbVCsearch kbVC400 kbAudDeveloper kbvc150 kbvc100 kbVC410 kbVC420 kbVC500 kbVC600 kbVC151 kbVC200 kbVC32bitSearch kbVC152 kbVC500Search
Version           : :1.0,1.5,1.51,1.52,2.0,4.0,4.1,4.2,5.0,6.0
Issue type        : kbprb

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