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Tip of the Day
Language: C++
Expertise: Intermediate
Apr 12, 2005

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Does the Compiler Always Create a Default Constructor?

The compiler creates a default construtor only in the following situations:
  • When the class's base class defines the default constructor.
  • When the class of member objects defines default constructors.
  • When the class has a virtual function.
  • When the class has a virtual base class.
So for the following class, the compiler does not create a defalut constructor if you do not define one:

class test
{

	public:
		void show();
		void get(int, char*, float);
	private:
		int h,
		char* ch;
		float f;
};

Saurabh Ramya
 
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