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47 lines
989 B
C++
47 lines
989 B
C++
// Step 1: create the class with private and protected numbers
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// Step 2: Declare the function with keyword friend. This type function has the argument as function declared class type.
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// Step 3: Define the friend function outside the class.
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// Step 4: Use private and protected members in that friend function.
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// Step 5: Call the friend function from main.
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#include <iosteram.h>
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#include<conio.h>
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class exforsys
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{
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private:
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int a,b;
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public:
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void test()
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{
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a=100;
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b=200;
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}
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friend int compute(exforsys e1)
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//Friend Function Declaration with keyword friend and with the object of class exforsys to which it is friend passed to it
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};
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int compute(exforsys e1)
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{
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//Friend Function Definition which has access to private data
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return int(e1.a+e1.b-5);
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}
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main()
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{
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exforsys e;
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e.test();
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//Calling of Friend Function with object as argument.
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cout<<"The result is:"<<compute(e);
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}
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