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Tip of the Day
Language: C++
Expertise: Beginner
Mar 19, 1999

Const and Reference Data Members Must be Initialized

A class may have const and reference data members. These members must be explicitly initialized by a member-initialization list:
 
class Allocator
{
private:
  const int chunk_size; 
  const string & serialization_path; // file into which an object can be serialized 
public:
  Allocator(int size, const string& path) : chunk_size(size), serialization_path (path){}
};
Danny Kalev
 
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