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German Rheinmetall open-sources its Battlesuite connected weapon system protcol

284 points · 109 comments · summarity

  1. jjmarr · · focus · HN ↗
    Open the C++ example up and the first thing I see:

    ```cpp std::cout << "Received ReportCoordinateFrameSettings" << std::endl; ```

    Generally, I've heard `std::endl` instead of \n has bad performance because it forces the statement to print immediately. And because cout is guaranteed to flush anyways when the program ends, you're adding a delay for no reason.

    I wonder if there's something I'm not seeing that led to them adopting this rule. e.g. "abnormal program termination" caused by the weapon blowing itself up circumventing a buffer flush?

    1. __d · · focus · HN ↗
      For a long time, std::endl demonstrated that you were a proper C++ programmer, not some neckbeard C apologist. It wasn’t until C++ had „won“ that it became acceptable to use \n again.
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