| # confusion over where worst slacks are stored and populated |
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| Tool: Gate Resizer |
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| Subcategory: Code understanding |
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| ## Conversation |
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| ### cshi15 |
| Hello, I'm an undergrad who has been trying to add some new functionality and thus trying to learn how the codebase works.
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| Right now, I am working in Resizer and trying to write a function that will print out the top failing (negative slack) paths. I was studying the code for worst slacks by studying the `worstSlack` functions in `Search.cc` and `WorstSlack.cc`, and also the `findResizeSlacks()` function in `Resizer.cc`. Looking at the `findResizeSlacks1()` function in `Resizer.cc`, it appears to populate the `worst_slack_nets_` field. However, when I try to access `worst_slack_nets_` in my function, it appears to be empty.
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| Is there something that I need to call before this to populate the field? Should I even be trying to access `worst_slack_nets_` at all? |
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| ### rovinski |
| @openroadie @maliberty any ideas here?
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| @cshi15 maybe take a quick look at #3045 to see if there was anything useful there.
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| Also maybe if you can commit what you have to a fork then it will make it easier to understand what you have tried so far. |
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| ### maliberty |
| I'm guessing you need to call Resizer::resizePreamble() first. |
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| ### maliberty |
| Can you put the code on a branch somewhere? |
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