Re: weird /strange???

One more thing:

Why would you do (true && b1)? Wouldn't that be the same as

b = b1 since "true" would always be a positive result? You don't really
"need" to compare it to "true".

Tom

bool b,b1;
b1 = MyData.success;
//MyData is protected using Mutex, b1=true here by using Visual Studio
watch window
b = (b1 == true);//return false ??????
b = (true && b1);//return true

"Tim Slattery" <Slattery_T@xxxxxxx> wrote in message
news:g56g12ts8qu4o0lvo4m4rd0rpubaelu5kg@xxxxxxxxxx
"Heinz Ozwirk" <hozwirk.SPAM@xxxxxxxx> wrote:

"kathy" <yqin_99@xxxxxxxxx> schrieb im Newsbeitrag
news:1142359707.474751.38170@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I have a piece of code which is in a multithread program:

...
bool b,b1;
b1 = MyData.success;
//MyData is protected using Mutex, b1=true here by using Visual Studio
watch window
b = (b1 == true);//return false ??????
b = (true && b1);//return true
...

Never compare a boolean value with true, always compare with false.

Why in the world?!?!?

Even though bool is basically defined as enum { false, true } it is large
enough to hold other values than 0 and 1.

No. The older Windows typedef BOOL is a redefinition of an integer,
and many different values could be stored there. The C++ primitive
datatype "bool", on the other hand, can store only the constants true
or false.

--
Tim Slattery
MS MVP(DTS)
Slattery_T@xxxxxxx


.

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