Yeah RVO is clear, I'm confused about the "pass by value" which I assume is as a... | Hacker News

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Jare on Oct 30, 2014 | parent | context | favorite | on: A taste of Rust for C/C++ programmers

Yeah RVO is clear, I'm confused about the "pass by value" which I assume is as a parameter to a function, where a creating a copy is unavoidable in the general case.

steveklabnik on Oct 30, 2014 [–]

I pinged the author, and they said:

> there is no implicit heap allocation, there is explicit heap allocation when you create the String, but not when you're just moving it around

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