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Nothing Is Better Than Copy or Move

ACCU Conference via YouTube

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Overview

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This presentation examines how C++ copying, moving, and copy elision behave through worked examples, including C++17 temporary materialization. It also covers practical pitfalls and special member rules.

Syllabus

Intro
How did we get here?
How does this magic work?
Early days of C++
Another C++98 example...
A third C++98 example...
Can actually break C++03 code
Temporary Materialization
A simplification
Don't be too clever!
Another example...
One bad object poisons the move
Special Members
What are the rules?
Comparison of copy and move
MSVC x86/x64 convention
Passing arguments to functions
Returning or passing a reference?

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ACCU Conference

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