watching a particular value

[carpeliam]

I want to find out when any particular string has a certain value.. there probably isn't a way to do this, but I might as well ask.

is there a way I can stop the process as soon as any variable has a certain value? I'm trying to find out which string has a certain value (and when)... Liam Morley
lmorley@wpi.edu
"light the deep, and bring silence to the world.
light the world, and bring depth to the silence."

 

[Cagliostro]

#include<string>
#include<iostream>
using namespace std;
int main()
{
string x;
x=&quot;xxxxx&quot;;
x+=&quot;yyyyy&quot;
if(x==&quot;xxxxxyyyyy&quotcout<<&quot;xxxxxyyyyy&quot;<<endl;
else cout<<&quot;error&quot;<<endl;
return 0;
} John Fill

ivfmd@mail.md

 

[carpeliam]

I don't think I was clear. Say I have 100 strings in 15 different classes and any one of them can contain a certain value. I want to find out as soon as that value is assigned <i>any</i> of them at any time, and I want to stop execution with a breakpoint of sorts. <p>Liam Morley<br><A HREF="mailto:"></A><br>&quot;light the deep, and bring silence to the world.<br>light the world, and bring depth to the silence.&quot;

 

[KeithBrautigam]

If you are using a string class, such as MFC's CString, you might be able to do this by setting a breakpoint in one or more of the class's functions and then assigning conditions to the breakpoint(s).

For instance, I set a breakpoint in CString::AssignCopy. Then I went to Edit...Breakpoints. I clicked the Condition button and entered the following expression:

lpszSrcData[0]=='A' && lpszSrcData[1]=='B'

That causes the debugger to stop where I set the break point only if the first two characters of the string are &quot;AB&quot;.

Note that setting breakpoints like this can drastically slow execution of your program in the debugger.

For more info, see

http://msdn.microsoft.com/library/d...ng_breakpoints.3a_.additional_information.htm