C++ Coding Standard

Rule: OLC#001

Synopsis:	If objects of a class should never be copied, then the copy constructor and the copy assignment operator shall be declared as deleted functions
Language:	C++
Severity Level:	2
Category:	Object Life Cycle

Description:

Use deleted functions instead of old-fashioned private declarations to prohibit copying.

Wrong example:

class SomeClass {
private:
  SomeClass(SomeClass const&);
  SomeClass& operator=(SomeClass const&);
};

Right example:

class SomeClass {
public:
  SomeClass(SomeClass const&) = delete;
  SomeClass& operator=(SomeClass const&) = delete;
};