C++ Archives - Page 50 of 68

What is array to pointer decay?

What is array to pointer decay? Is there any relation to array pointers? 11 Answers 11 It’s said that arrays “decay” into pointers. ...

May 5, 2022
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How do I tokenize a string in C++?

Java has a convenient split method: String str = "The quick brown fox"; String...

May 5, 2022
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How do I pass a unique_ptr argument to a constructor or a function?

I’m new to move semantics in C++11 and I don’t know very well how to handle unique_ptr parameters in constructors or functions. Consider ...

May 5, 2022
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What are the barriers to understanding pointers and what can be done to overcome them? [closed]

Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so ...

May 5, 2022
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‘printf’ vs. ‘cout’ in C++

What is the difference between printf() and cout in C++? 16 Answers 16 I’m surprised that everyone in this question claims that std::cout ...

May 5, 2022
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What are copy elision and return value optimization?

What is copy elision? What is (named) return value optimization? What do they imply? In what situations can they occur? What are limitations? ...

May 5, 2022
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How many levels of pointers can we have?

How many pointers (*) are allowed in a single variable? Let’s consider the following example. int a = 10; int *p = &a; ...

May 5, 2022
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Is there any advantage of using map over unordered_map in case of trivial keys?

A recent talk about unordered_map in C++ made me realize that I should use unordered_map for most cases where I used map before, ...

May 5, 2022
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Static linking vs dynamic linking

Are there any compelling performance reasons to choose static linking over dynamic linking or vice versa in certain situations? I’ve heard or read ...

May 5, 2022
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Why do we use volatile keyword? [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: Why does volatile exist? I have never used it but I ...

May 5, 2022
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