TotalView Users Guide - CI Wiki

Changing How Data is Displayed
Figure 165: An
Untransformed Map
Figure 166: A Transformed
Map
Displaying STL Variables
The C++ STL (Standard Template Library) greatly simplifies the way in which
you can access data. Since it offers standard and prepackaged ways to organize
data, you do not have to be concerned with the mechanics of the
access method. The disadvantage to using the STL while debugging is that
the information debuggers display is organized according to the compiler’s
view of the data, rather than the STL’s logical view. For example, here is how
your compiler sees a map compiled using the GNU C++ compiler (gcc):
Most of the information is generated by the STL template and, in most
cases, is not interesting. In addition, the STL does not aggregate the information
in a useful way.
STLView solves these problems by rearranging (that is, transforming) the data
so that you can easily examine it. For example, here is the transformed map.
Using native and GCC compilers on IBM AIX, IRIX/MIPS, HP Tru64 Alpha,
and Sun Solaris, TotalView can transform STL strings, vectors, lists, and
280 Chapter 14: Examining and Changing Data