Top "Rvalue" questions

An rvalue is a temporary object (or subobject) or is a value not directly associated with an object.

invalid initialization of non-const reference of type 'int&' from a temporary of type 'int'

#include<iostream> using namespace std; int fun(int &x) { return x; } int main() { cout << fun(10); …

c++ reference temporary lvalue rvalue
Taking the address of a temporary object

§5.3.1 Unary operators, Section 3 The result of the unary & operator is a pointer to its operand. The operand shall be …

c++ rvalue
Address of a temporary in Go?

What's the cleanest way to handle a case such as this: func a() string { /* doesn't matter */ } b *string = &a() …

pointers return go temporary rvalue
What makes moving objects faster than copying?

I have heard Scott Meyers say "std::move() doesn't move anything" ... but I haven't understood what it means. So to …

c++ move rvalue
Exact difference between rvalue and lvalue

While I was reading http://thbecker.net/articles/rvalue_references/section_01.html, I got following snippiest. // lvalues: // int i = 42; i = 43; // …

c++ c++11 rvalue
Are literal strings and function return values lvalues or rvalues?

Just wonder if a literal string is an lvalue or an rvalue. Are other literals (like int, float, char etc) …

c lvalue rvalue
Passing rvalues through std::bind

I want to pass an rvalue through std::bind to a function that takes an rvalue reference in C++0x. …

c++ c++11 std rvalue-reference rvalue
Why is taking the address of a temporary illegal?

I know that the code written below is illegal void doSomething(std::string *s){} int main() { doSomething(&std::string("…

c++ temporary memory-address lvalue rvalue
Best form for constructors? Pass by value or reference?

I'm wondering the best form for my constructors. Here is some sample code: class Y { ... } class X { public: X(const …

c++ constructor pass-by-value rvalue rvalue-reference