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warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)

Posted on 2006-11-27
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Last Modified: 2013-11-20
Hi guys,

Got this warning:

warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)


Want to tidy it up, here's the line affected:


bool bResult = pDlg->CB_IsOurCustomBrowser();




What would I need to do?


Cheers!
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Question by:Cyber-Drugs
4 Comments
 
LVL 30

Accepted Solution

by:
Axter earned 300 total points
ID: 18021613
Hi Cyber-Drugs,
> What would I need to do?

Try the following:
bool bResult = pDlg->CB_IsOurCustomBrowser()?true:false;

David Maisonave (Axter)
Cheers!
0
 
LVL 48

Assisted Solution

by:AlexFM
AlexFM earned 200 total points
ID: 18021631
What is return type of CB_IsOurCustomBrowser? If this is int or BOOL, this warning is shown, because int is casted to bool. Notice that BOOL is defined as int32 value, and bool is one byte. There are three ways to correct this:

BOOL bResult = pDlg->CB_IsOurCustomBrowser();

bool bResult = (pDlg->CB_IsOurCustomBrowser() != 0);

bool bResult = (bool)pDlg->CB_IsOurCustomBrowser();
0
 
LVL 4

Author Comment

by:Cyber-Drugs
ID: 18021653
Hi guys,

All of the solutions you posted worked, cheers! :)
0
 
LVL 2

Expert Comment

by:piyush_soni
ID: 21585849
This being said, I was just wondering, what would be the most efficient way to do this? No points ...just reply if you know and want to ....
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