HighwaySegment::clinchedby_code

yakra / DataProcessing

Data Processing Scripts and Programs for Travel Mapping Project

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Open yakra opened 2 years ago

yakra commented 2 years ago

[ ] Don't allocate & return a std::string thousands of times. Allocate a char* once per graph, pass in, and modify.
Here's one for https://github.com/yakra/DataProcessing/issues/214:
- [ ] if (nibble > '9') nibble += 7; -> nibble += (nibble > '9')*7;
- ~or what I did in Python: "0123456789abcdef"[foo]?~ Nah. Not too adaptable to the way the C++ routine does it. Good enough with the no-branch solution.

yakra commented 2 years ago

Branchless performs worse on lab5. Review other machines.

yakra commented 1 year ago

Review the Python implementation. "0123456789ABCDEF"[foo] is legal C++; maybe this can help.