Weird debug behaviour

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Val - 24 May 2004 00:39 GMT

In vc7 (studio 2002), when I try to debug the first "if" statement, the IDE jumps to the next valid line and evaluates it even
if the if-statement is false. What is going on?

if( (theDealer.m_nPoints == 15) && (theDealer.Hand.size() == 2) ) //Break Point set here but...
{
vector<Card>::iterator vdi; // ... runs to here once debugging starts. Even if false is returned initially.
vdi = find_if( theDealer.Hand.begin(), theDealer.Hand.end(), SpecificValueCheck(14) );
if (vdi != theDealer.Hand.end())
return true;
}

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B0nj - 24 May 2004 19:28 GMT

Check that it's not in 'release' mode. You can still debug in release mode,
but weird things will happen. It doesn't necessarily mean that in Release
mode it would take a 'shortcut' to there once the if statement had been
evaluated, and would jump into the if block regardless - it simply means the
debugger hasn't got a clue what's going on as the exe may be optimized and
hasn't got pdb symbols in it.

> In vc7 (studio 2002), when I try to debug the first "if" statement, the IDE jumps to the next valid line and evaluates it even
> if the if-statement is false. What is going on?
[quoted text clipped - 6 lines]
> return true;
> }

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Val - 25 May 2004 00:11 GMT

| Check that it's not in 'release' mode. You can still debug in release mode,
| but weird things will happen. It doesn't necessarily mean that in Release
[quoted text clipped - 17 lines]
| > return true;
| > }

Hmm, this was a VC6 project containing STLport 4.6.2, ported to VC7. What I did was deleting all files except for the
source/headers. Then I created a new managed C++ project from start. Now it works again.
I don't know why the debugger didn't have a clue.

Thank you for your help, much appreciated!

- Val -

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Beeeeeves - 12 Jun 2004 14:20 GMT

It does have a habit of getting itself confused, often simply restarting the
IDE can have the same effect.

> | Check that it's not in 'release' mode. You can still debug in release mode,
> | but weird things will happen. It doesn't necessarily mean that in Release
[quoted text clipped - 25 lines]
>
> - Val -

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Weird debug behaviour

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