re: What Makes A Senior Software Engineer VIEW POST

re: You definitely do not need to know the low level details of C strings to know which bits are the important bits for you to focus on, unless you're ...

That was merely one example. There are plenty of others. One is some developer was putting expensive function calls as arguments to a debug print function, so even when the debug printing was disabled, the function arguments were still being called (and their results discarded). In this case, he obviously didn't know that function arguments are always evaluated. That's a fairly low-level thing, but it can kill your performance.

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