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15 lines
1.6 KiB
Plaintext
15 lines
1.6 KiB
Plaintext
[[Property:title|Call stack tool]]
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[[Property:weight|-13]]
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[[Property:uuid|8c3cd0fe-78aa-7ec6-f36a-2233a4e26755]]
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The call stack is the list of routines that have been entered during execution, but not yet exited since execution started. The list can be considered a '''stack''' structure, because before any routine, say <code>my_routine</code>, can exit, any routine that <code>my_routine</code> may have called must have exited first. Therefore the last entered feature is listed at the top of the stack and the program root feature is its bottom.
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There is one level in the call stack, the currently selected element, that has a special status. It is the level to which all debugging tools refer. The currently selected element is, as you might guess, user-selectable. So it is possible to move along the call stack, changing the currently selected element, and view information in the debugging tools about any level..
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To keep a record of a call stack (for example in order to indicate to other people where a problem occurred), you can [[Save call stack|save the call stack]] to a text file.
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Information concerning the call stack is spread over several graphical components:
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* The entire call stack, depicted as a list of elements, is displayed in the [[Call stack tool: Interface|call stack tool]] .
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* [[Information relative to a stack element|Information concerning the current call stack element]] is displayed in the feature tab, the locals view, and is used to provide the expressions evaluations contained in the [[Evaluation tool or Watch tool|Expression evaluator tool]] .
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