Tencent Cloud Developer
Oct 26, 2023 · Fundamentals
C++ Value Categories: lvalue, prvalue, xvalue, and Their Role in Function Returns and Move Semantics
The article explains how C++ value categories—lvalue, prvalue, and xvalue—govern function return handling, parameter passing, and object lifetimes, detailing hidden out‑parameters, copy‑elision, const‑reference lifetime extension, rvalue references, and the role of std::move in enabling move semantics.
C++assemblylvalue
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