C++ Weekly - Ep 70 - C++ IIFE in quick-bench.com

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Комментарии
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I don't think "other" vs "0" has anything to do with small string optimization. "other" took longer because strlen (called in std::string's ctor) takes longer.

shakooosk
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What about string_view and operator""sv?

MarekKnapek
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Note: the website used for benchmarking seems to use the micro-benchmarking library google/benchmark. Using it in your own projects requires compiling it using CMake (what I could do without encountering any particular difficulty).

moandrez
Автор

I tried it even with string views on GCC 7.1 and I couldn't find a noticeable difference. I suppose it depends on implementation and context where it's used. The difference was in the range of 1-2 nanoseconds at most. I consider that to be noise.

From personal experience though, I noticed when I const things I actually get worse performance. Yeah, that was a WTF conclusion. Which is why I reduced my obsession with const-ing everything I don't modify.

dresnyd