Step 10: Breakpoint Conditions

To add a condition to your watchpoint:

1. In the Breakpoints window, right-click the After Write breakpoint and choose Customize.

2. Verify that After is selected in the When field.

   Selecting After enables you to see what the value of err_silent was changed to.

3. Set the Condition field to err_silent == -1.

4. Click OK.

   

5. Run the program again.

   You stop in checkThings(), which is the first time err_silent is set to -1. As you look for the matching err_silent++ you see what looks like a bug: err_silent is incremented only in the else portion of the function.

   

   Could this be the bug you've been looking for?