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		voldacar on Dec 27, 2019 \| parent \| context \| favorite \| on: Single-Assignment C > This leads to structs being passed by value do compilers generally optimize this away on -O3, or do you just accept the performance hit in exchange for prettier code?

asymptotically2 on Dec 27, 2019 [–]

If it's a static method (or in an anonymous namespace in C++), it should get fixed at any optimisation level. However if it's a global method, you'll need to pass -flto to defer optimisations to link time to make it work.

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