Match the following for + overloaded operator Col A Col B Unary operator with member function II. I. Unary operator with friend function Binary operator using member function Binary operator using friend function a. operator+(objl, obj2) b. obj1.operator+(obj2) c. obj1+0) d. operator+(&objl) III. IV.

Match the following for + overloaded operator Col A Col B Unary operator with member function II. I. Unary operator with friend function Binary operator using member function Binary operator using friend function a. operator+(objl, obj2) b. obj1.operator+(obj2) c. obj1+0) d. operator+(&objl) III. IV.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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//Forward declaration: Declare a class named Test2 class Testi { int num; public: Testi (int = 111); void funci () ; Testi operator-- (int) ; operator float () ; friend class Test2; }: class Test2 { int num; public: Test2 () { num = 555; } void funcl (Test1); friend void funci (Test2); friend ostream& operator<< (ostream&, const Test2&) ; }: //Write a function header and complete the function definition for the constructor of Testi class { = num; //Write a function header for the funci function in Testi class cout <« "Hello from funci in Testi class: " < num « endl; } //Write a function header and complete the function definition for the overloaded postfix operator-- Testi t(num--); } //Write a function header for the type conversion function in Testi class return num / 2.5; } //Write a function header for the funci function in Test2 class cout << "Hello from funci in Test2 class: " << ti.num << endl;
A pure virtual function is a virtual function that causes its class to be abstract Cpp True/False
Explain your response. Is this true or false? - A virtual member function executes more quickly than a standard member function.
3. Which one is incorrect in case of Operator overloading? A. The syntax of overloaded operator cannot be overridden. They follow syntax rules of original operators B. We can give new meaning to an operator C. Number of operands, precedence and associativity remains same D. We cannot use friend function to overload certain operators =,0,[],->.
2. Illustrate using suitable example, why friend function in needed for operator overloading when you can achieve the same using member function.
22) If you write an overloaded operator function for a class (for a binary operator), where the left operand is not an object, the function heading of the overloaded operator function in the class implementation file does not include the class name followed by the double colon (::) because: a. the right operand cannot be an object of the class either b. it is never necessary to do this for overloaded operator functions of classes c. the class name followed by the double colon tells the compiler that the function prototype that corresponds to this function definition is found within that class definition, and the function prototype would appear beneath the class definition d. the overloaded operator function belongs to the class already
If private member functions are to be declared in C++ then private O private: O Private:- O private(private member list) O