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Watch expression in C/C++ Project is possible?? [message #817749]

Sat, 10 March 2012 10:41

Eclipse User

Hi!!

I'm try to view the result of a "if" sentence, but I don't know how to do. Confused

Is possible do this in C Project or.. is only for Java Project?

Regards and sorry for my very bad English! Embarrassed

Re: Watch expression in C/C++ Project is possible?? [message #819081 is a reply to message #817749]

Mon, 12 March 2012 09:19

Eclipse User

Please, anyone can help me??
I want known the result of this sentence, for example:

if(i==5)
{
     break;
}

Re: Watch expression in C/C++ Project is possible?? [message #819105 is a reply to message #819081]

Mon, 12 March 2012 09:50

Eclipse User

Hi,
I don't see what you mean saying "the result of a 'if' sentence".

For your example, this code is useless, the 'break' will put you out of the 'if' sequence.

Could you be more accurate about what you expect to do?

Maybe you should have a look at the Breakpoint?

[Updated on: Mon, 12 March 2012 09:52] by Moderator

Re: Watch expression in C/C++ Project is possible?? [message #819245 is a reply to message #819105]

Mon, 12 March 2012 13:10

Eclipse User

Sorry for my bad explanation.

I want see if a condition sentence is true or false (in the debugger at run time, obviously!).
New example:

int i;
cin << i;
if(i == 5) // I want see if this condition return true or false at runtime.
{
    cout << "This is the number secret!! :)"
}
else
{
    cout << "Sorry, try again! :("
}

Re: Watch expression in C/C++ Project is possible?? [message #819738 is a reply to message #819245]

Tue, 13 March 2012 05:14

Eclipse User

You may add some BreakPoint into your then and else statement.
You just have to right click on the column where markers are shown and use 'Toggle Breakpoint'. There will be a blue point facing the line.
Then, you run a debug, and the execution will normally stop when it reaches the line containing the breakpoint.
In the debug view, you could see all the environment there is during the execution.

Hope it helps,
Fabien

Re: Watch expression in C/C++ Project is possible?? [message #819796 is a reply to message #819245]

Tue, 13 March 2012 06:38

Eclipse User

Carlos Solano wrote on Mon, 12 March 2012 18:10

Sorry for my bad explanation.

I want see if a condition sentence is true or false (in the debugger at run time, obviously!).
New example:
int i;
cin << i;
if(i == 5) // I want see if this condition return true or false at runtime.
{
    cout << "This is the number secret!! :)"
}
else
{
    cout << "Sorry, try again! :("
}

So you want a conditional breakpoint? Set a breakpoint and then open the context menu of the breakpoint (right click on the blue circle) and choose "Breakpoint properties..."

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