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Questions - xvalue

Temporary materialization and xvalue expression

cppreference is said that: any expression that designates a temporary object after temporary materialization is xvalue expression (since C++17). Temporary materialization is: A prvalue of any complet...
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user15676138

c++

temporary-objects

xvalue

Votes: 0

Answers: 2

Latest Answer

When the compiler converts const T& t = T(); into the AST, it looks roughly like this: `-DeclarationStatement `-VariableDeclaration (name: t, type: const T&) `-InitializerExpr (type: con...
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Cubbi

How expressions designating temporary objects are xvalue expression?

From cppreference, I am trying to understand expressions that yield xvalues, and I ended up with this summary: The following expressions are xvalue expressions: ... any expression that designates a ...
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mada

c++

value-categories

xvalue

prvalue

Votes: 0

Answers: 1

Latest Answer

situation 3, 4 and 7. 7 (discarded expression) is the easiest: 42; // materialize and discard std::string{"abc"}; // materialize and discard 3 (doing things to array rvalue) requires know...
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Cubbi

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