TotalView Users Guide - CI Wiki

Displaying Variables
Figure 174: Displaying
Scoped Variables
Viewing Variables in Different Scopes as Program
Executes
When TotalView displays a Variable Window, it understands the scope in
which the variable exists. As your program executes, this scope doesn’t
change. In other words, if you’re looking at variable my_var in one routine,
and you then execute your program until it is within a second subroutine
that also has a my_var variable, TotalView does not change the scope so
that you are seeing the in scope variable.
If you would like TotalView to update a variable’s scope as your program
executes, select the View > Compilation Scope > Floating command. This
tells TotalView that, when execution stops, it should look for the variable in
the current scope. If it finds the variable, it displays the variable contained
within the current scope.
Select the View > Compilation Scope > Fixed command to return TotalView
to its default behavior, which is not to change the scope.
Selecting floating scope can be very handy when you are debugging recursive
routines or have routines with identical names. For example, i, j, and k
are popular names for counter variables.
288 Chapter 14: Examining and Changing Data