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Escape analysis hates copy elision (2021)

by Arthur O’Dwyer quuxplusone.github.io 6 min read

Yesterday Lauri Vasama showed me this awesome Godbolt: struct S { static std::unique_ptr<S> make() noexcept; ~S(); static std::unique_ptr<S> factory() { std::unique_ptr<S> s = S::make(); return M(s); } }; void take_ownership(S*) noexcept; void test() { std::unique_ptr<S> p = S::factory()…
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Software EngineeringSystems & Performance2023

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Oct 14, 2023Escape analysis hates copy elision (2021) by pornel12253

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