Firstly, I've heard that Guaranteed Copy Elision is a misnomer (as, I currently understand, it's more about fundamentally redefining the fundamental v ...
Firstly, I've heard that Guaranteed Copy Elision is a misnomer (as, I currently understand, it's more about fundamentally redefining the fundamental v ...
In the following code, I understand that the value category of the argument passed in the constructor of var1 is an l-value, var2 is an x-value and ...
Consider this example: The rules govern reference-initialization are found in [dcl.init.ref]/5: A reference to type “cv1 T1” is initialized by ...
Consider the following code: struct S { S(int, double) {} explicit S(const S&) {} explicit S(S&&) {} }; void i_take_an_S(S s ...
From cppreference Temporary objects are created .. in the following situations: conversion that creates a prvalue (including T(a,b,c) and T{ ...
cppreference says that: a temporary object is created when a reference is bound to prvalue. Do they mean const lvalue references and rvalue references ...
From cppreference, I am trying to understand expressions that yield xvalues, and I ended up with this summary: The following expressions are xvalu ...
How can I told to С++17 compiler to create temporary in the following case (i.e. The C++17 compiler must considered copy/move operation, like C++11 an ...
I'm looking for a way to prevent ++x++ from working for types with user defined prefix and postfix increment operators. For builtin types the result ...
I've been carefully studying C++ catogories recently. The difference between lvalue and rvalue seems to be clear, but I got confused when it comes to ...
I'm rather confused about determiming the value category of an expression. Could you please provide the basic steps that should be taken (what should ...
Let's say we have a function: As far as I know the expressions: are both xvalue. But why? Why aren't they prvalue? I'm a little bit confused. ...
This is a followup to my previous question, where the apparent consensus was that the change in treatment of cv-qualifications of prvalues was just a ...
In C++ draft standard N3337 section 5.2.10 Reinterpret cast clause 7 (emphasis mine): An object pointer can be explicitly converted to an object p ...
I mistakenly pasted a throw statement after a return with the following final result: I successfully built the solution before noticing the mistake ...
In §[except.throw], the standard says that throwing an exception copy-initializes the exception object from the throw expression Throwing an excep ...
my question is if it would make sense to std::move (or not) a prvalue into a catch-all function template which accordingly takes a universal reference ...
With c++17 we have fancy new is_invocable and fancy new prvalues that aren't really values. This permits you to create an object without having to fi ...
This document appears to be the source of these changes from C++11: n3055. II. Overview of Changes Rvalues, as currently known in the core langu ...
I'm trying to do this in C++: And I get "expression must be an l-value or function designator" error in visual studio 2015. So I don't understand w ...