Q85510: CodeView Does Not Use Default Arguments for Functions

Article: Q85510
Product(s): Microsoft Programming Utilities
Version(s): 4.0,4.01,4.05,4.1
Operating System(s): 
Keyword(s): kberrmsg kbCodeView kbDebug kbVC _IK
Last Modified: 26-JUN-2001

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The information in this article applies to:

- Microsoft CodeView for MS-DOS, versions 4.0, 4.01, 4.05, 4.1 
- Microsoft CodeView for Windows, versions 4.0, 4.01, 4.1 
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SUMMARY
=======

Microsoft CodeView versions 4.0 and later, which support debugging C++ programs,
do not correctly evaluate functions that use default arguments. When an
expression is used that requires CodeView to evaluate a function with a default
argument, the following error message is displayed:

  CXX0047: Error: argument list does not match a function

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

The sample code below contains a function that has a default argument. In the
program, the function PrintOut() can be called either with a void parameter list
or with a character pointer. When the following command is executed from
CodeView's command window

     ? PrintOut("This is a string constant")

the function is called and "This is a string constant" is printed to the output
screen. When the function PrintOut() is called with no parameters, for example

     ? PrintOut()

the error CXX0047 is generated. This occurs only when using the "?" command in
CodeView to force a function to be evaluated.

Default arguments are supported only in C++ programs.

Sample Code
-----------

  /* Compile options needed: /Od /Zi
  */ 

  #include <iostream.h>

  void PrintOut (char *String = "This is a default argument.");

  void main (void)
  {
     PrintOut();
     PrintOut( "This is not a default argument.");
  }

  void PrintOut (char *String)
  {
     cout << String << endl;
  }

Additional query words: kbinf 4.00 4.10

======================================================================
Keywords          : kberrmsg kbCodeView kbDebug kbVC _IK 
Technology        : kbAudDeveloper kbCodeView kbZNotKeyword3 kbCodeView400DOS kbCodeView401DOS kbCodeView405DOS kbCodeView410DOS kbCodeView400 kbCodeView401 kbCodeView410
Version           : :4.0,4.01,4.05,4.1

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