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std::visit by reference #5311

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merged 1 commit into from
Oct 1, 2021
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I had started the trend of doing std::visit by value (because a type
error once mislead me into thinking that was the only form that
existed). While the optomizer in principle should be able to deal with
extra coppying or extra indirection once the lambdas inlined, sticking
with by reference is the conventional default. I hope this might even
improve performance.

I had started the trend of doing `std::visit` by value (because a type
error once mislead me into thinking that was the only form that
existed). While the optomizer in principle should be able to deal with
extra coppying or extra indirection once the lambdas inlined, sticking
with by reference is the conventional default. I hope this might even
improve performance.
@edolstra edolstra merged commit 9e39314 into NixOS:master Oct 1, 2021
@Ericson2314 Ericson2314 deleted the std-visit-by-ref branch October 1, 2021 15:29
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