rvalue-reference

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Do compilers automatically use move semantics when a movable object is used for the last time?

I\'ve been studying rvalue references lately and came to a conclusion that it\'s quite advantageous t开发者_如何学运维o use pass-by-value everywhere where complete copy of an object will be made (for[详细]

2023-03-07 11:06 分类：问答
Are value parameters implicitly moved when returned by value?

Consider the following function: Foo foo(Foo x) { return x; } Will return x invoke the copy constructor or the move constructor? (Let\'s leave NRVO aside here.)[详细]

2023-03-05 20:22 分类：问答
Operator overload which permits capturing with rvalue but not assigning to

Is it possible to design and how should I make overloaded operator+ for my class C to have this possible:[详细]

2023-03-03 14:01 分类：问答
Copy-elision of automatic variable for return

I am wondering if in C++0x \"12.8 C开发者_如何学Copying and Moving class objects [class.copy] paragraph 31\" when copy elision happens, exactly:[详细]

2023-02-28 22:19 分类：问答
Is there any case where a return of a RValue Reference (&&) is useful?

Is there a reason when a function should return a RValue Reference? A t开发者_开发技巧echnique, or trick, or an idiom or pattern?[详细]

2023-02-28 15:14 分类：问答
Correct use of `= delete` for methods in classes

Is the following snipplet correct for un-defining all otherwise generated methods and constructors for a class?[详细]

2023-02-25 19:07 分类：问答
move semantics std::move how use it

#include <type_traits> template<class开发者_StackOverflow中文版 T> typename std::remove_reference<T>::type&& move(T&& v)[详细]

2023-02-22 05:48 分类：问答
Rvalue reference parameters and template functions

If I define a function which accepts an rvalue reference parameter: template <typename T> void fooT(T &&x) {}[详细]

2023-02-21 23:53 分类：问答
What is multimap::emplace() and move()?

I was viewing the MSDN doc about mu开发者_运维问答ltimap and find that it has a member function multimap::emplace(). Below is the example of that member function.[详细]

2023-02-20 23:47 分类：问答
What does T&& (double ampersand) mean in C++11?

I\'ve been looking into some of the new features of C++11 and one I\'ve noticed is the double ampersand in declaring variables, like T&& var.[详细]

2023-02-20 12:22 分类：问答