c++-faq Archives - Page 8 of 8

What is the copy-and-swap idiom?

What is this idiom and when should it be used? Which problems does it solve? Does the idiom change when C++11 is used? ...

April 10, 2022
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What are the basic rules and idioms for operator overloading?

Note: The answers were given in a specific order, but since many users sort answers according to votes, rather than the time they ...

April 10, 2022
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What is The Rule of Three?

What does copying an object mean? What are the copy constructor and the copy assignment operator? When do I need to declare them ...

April 10, 2022
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?

What are the proper uses of: static_cast dynamic_cast const_cast reinterpret_cast C-style cast (type)value Function-style cast type(value) How does one decide which to use ...

April 10, 2022
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Why is “using namespace std;” considered bad practice?

I’ve been told by others that writing using namespace std; in code is wrong, and that I should use std::cout and std::cin directly ...

April 10, 2022
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What does the explicit keyword mean?

What does the explicit keyword mean in C++? 10 The compiler is allowed to make one implicit conversion to resolve the parameters to ...

April 10, 2022
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What are the differences between a pointer variable and a reference variable in C++?

I know references are syntactic sugar, so code is easier to read and write. But what is the difference between a pointer variable ...

April 9, 2022
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The Definitive C++ Book Guide and List

This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. ...

April 9, 2022
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