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default rule of five c++

Glamorous Gibbon answered on March 5, 2021 Popularity 8/10 Helpfulness 6/10

answer default rule of five c++

related c++ rule of five

default rule of five c++

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class X
{
public:
   X() = default;
   
   X(X const& other) = default;
   X& operator=(X const& other) = default;
   
   X(X&& other) = default;
   X& operator=(X&& other) = default;
   
   ~X() = default;
};

Popularity 8/10 Helpfulness 6/10 Language cpp

Source: www.fluentcpp.com

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Contributed on Mar 05 2021

Glamorous Gibbon

0 Answers Avg Quality 2/10

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c++ rule of five

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// Rule of five: When the rule of three deletes the copy constructor or
// assignment operator, the move operators are no longer defined by default.
// If move semantics are desired for the class, they must be specified manually.
class Class {
public:
    Class() {}
    ~Class() { ... }		                // Custom destructor
  
    Class(const Class& c) { ... }	        // Custom copy constructor
  	void operator=(const Class& c) { ... }  // Custom assignment operator
  
    Class(Class&& c) { ... }	        // Custom move constructor
  	void operator=(Class&& c) { ... }   // Custom move assignment operator
private:
    some_type* non_copyable_resource = nullptr;
}

Popularity 9/10 Helpfulness 4/10 Language cpp

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Tags: c++ rule ru

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Contributed on Oct 16 2022

Clear Cat

0 Answers Avg Quality 2/10

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default rule of five c++

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