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c++: What is pointer to member? Can someone please explain with an example?

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c++: What is pointer to member? Can someone please explain with an example?
posted Dec 20, 2014 by Amit Kumar Pandey

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1 Answer

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In C++ programming, there are concepts of member function and variable. When a pointer points to an object and calls its member function it is known as pointer to member function. Its prototype is different from the ordinary function prototype. For example:

include

using std::cout;
void fun1(int x)
{
int y = x;
cout << y;
}

typedef class
{
int a;
public:
int fun1(int x)
{ a = x; cout << a;}

}X;
int main()
{
fun1(10); // first call
X x;
x.fun1(10); // Second call
return 0;
}

Conclusion: first call of function "fun1" is pointer to function and second call of "fun1" is pointer to member function of class X;

answer Dec 21, 2014 by Neeraj Mishra
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