c++11 Archives - Page 10 of 11

What’s the difference between constexpr and const?

What’s the difference between constexpr and const? When can I use only one of them? When can I use both and how should ...

April 23, 2022
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What is std::move(), and when should it be used?

What is it? What does it do? When should it be used? Good links are appreciated. 8 s 8

April 18, 2022
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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 ...

April 16, 2022
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push_back vs emplace_back

I’m a bit confused regarding the difference between push_back and emplace_back. void emplace_back(Type&& _Val); void push_back(const Type& _Val); void push_back(Type&& _Val); As there ...

April 16, 2022
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What is the difference between ‘typedef’ and ‘using’ in C++11?

I know that in C++11 we can now use using to write type alias, like typedefs: typedef int MyInt; Is, from what I ...

April 14, 2022
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What are rvalues, lvalues, xvalues, glvalues, and prvalues?

In C++03, an expression is either an rvalue or an lvalue. In C++11, an expression can be an: rvalue lvalue xvalue glvalue prvalue ...

April 12, 2022
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What is a lambda expression in C++11?

What is a lambda expression in C++11? When would I use one? What class of problem do they solve that wasn’t possible prior ...

April 11, 2022
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Why should I use a pointer rather than the object itself?

I’m coming from a Java background and have started working with objects in C++. But one thing that occurred to me is that ...

April 10, 2022
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What is move semantics?

I just finished listening to the Software Engineering radio podcast interview with Scott Meyers regarding C++0x. Most of the new features made sense ...

April 10, 2022
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What is a smart pointer and when should I use one?

What is a smart pointer and when should I use one? 1 14 UPDATE This answer is rather old, and so describes what ...

April 10, 2022
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