Thread

German Rheinmetall open-sources its Battlesuite connected weapon system protcol

284 points · 109 comments · summarity

jjmarr · 1789514348 · 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. gavinray · 1789518150 · focus · HN ↗
  The modern C++ idiom is std::println() anyways...
  <a href="https://en.cppreference.com/cpp/io/println" rel="nofollow">https://en.cppreference.com/cpp/io/println

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