Кстати, в С++ все опять плохо, теперь из-за ABI (Application binary interface)
Library primitives, and even *language* operations like function calling, have overhead that we could easily quash ... if we forced a rebuild-from-source for a new release.
Like, unordered_map is 30-50x slower than a better implementation might be. std::regex is probably even worse than that.
The language can't really be the "Performance above all" systems language when we're leaving that on the table.
https://twitter.com/TitusWinters/status/1188455260702027776Или просто док
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1863r0.pdf