CODEWITHSUNDEEP
c++move
user3626676
user3626676

Reputation: 65

Terminology involved in C++ move

On this page http://herbsutter.com/elements-of-modern-c-style/ in the "Move / &&" section it refers to the term callee-allocated out in the following context (quoted from that link):

// C++11: move
vector<int> make_big_vector(); // usually sufficient for 'callee-allocated out' situations
:::
auto result = make_big_vector(); // guaranteed not to copy the vector

What does that term mean?

Upvotes: 3

Views: 87

Answers (1)

Jay Miller
Jay Miller

Reputation: 2234

"Callee-allocated" as in allocated by the function being called, "out" meaning data being returned. This is as opposed to "caller-allocated" where the caller would have to pass the allocated structure into the function.

Upvotes: 5

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