FIX: Unable to Set Breakpoint on Label in Constructor

The information in this article applies to:

• The Visual Workbench Integrated Debugger included with Microsoft Visual C++, 32-bit Edition, versions 1.0 and 2.0

SYMPTOMS

The debugger is unable to set the breakpoint and no warning or error messages are given when you set the following breakpoint:

   {SimpleClass::SimpleClass}MyLabel

   {SimpleClass::SimpleClass(int)}MyLabel

CAUSE

There are two constructors SimpleClass::SimpleClass and the label happens to be in the second of the two constructors as shown in the sample code listed in the More Information section below. The expression evaluator searches only the first of the contexts specified by the context operator for the label.

RESOLUTION

Reverse the order of the definitions of the constructors to set the breakpoint correctly.

STATUS

Microsoft has confirmed this to be a bug in the products listed at the beginning of this article. This problem was not reproducible in Microsoft Visual C++, 32-bit Edition, version 4.0.

MORE INFORMATION

The following sample code demonstrates the problem. The debugger does not set a breakpoint on {SimpleClass::SimpleClass}MyLabel.

Sample Code

#include <stdio.h>

 public:
   int initval;

   SimpleClass( void );
   SimpleClass( int );

SimpleClass::SimpleClass() {

   initval = 0;

SimpleClass::SimpleClass( int val ) {

   initval = val;

   ;

void main( )

   SimpleClass SCOne(10);

   printf( "%d\n", SCOne.initval );