2.4.2. Viewing structured data
In Registers, Variables, and Watch views, you often see data
displayed in a tree structure that you can expand or collapse. Generally,
values that have changed since the previous break in execution are
colored red, but that is not possible in the following situations:
You might collapse a branch
of displayed data in a Registers view, continue execution for one
or more steps, and then expand the branch again. In this case the
values displayed in red are those that have changed since the last
time they were displayed, not since the previous break in execution.
Also any value that changed and returned to its original value is
not colored red.
You might collapse a branch of displayed data in
a Variables or Watch view, continue execution for one or more steps,
and then expand the branch again. The old values are discarded if
execution takes place with a collapsed branch, and recalculated
when you later expand the display. In this case, therefore, it is impossible
to know which values have changed, so no red coloring is possible.
If you try to expand a branch that has no elements, the string (Empty) is
displayed.
The expansion dialog imposes limits. Any single expansion
is restricted to a maximum of 4000 elements, and you normally request
far fewer than that. The total number of elements supported in a
single view is 32,000.
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