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Chapter 11: Problem 15

Is it possible using operator overloading to change the behavior of \(+\mathrm{on}\) integers? Why or why not?

Short Answer

Expert verified
Explain your answer. Answer: No, we cannot use operator overloading to change the behavior of the addition operation on integers. This is because integers are primitive data types whose behavior is defined at the language level and cannot be modified by programmers. Changing the addition operation's behavior on integers could lead to unintended consequences and make code harder to read, understand, and maintain.

Step by step solution

01

Understand Operator Overloading

Operator overloading is a programming concept that allows us to redefine or modify how operators behave on various data types. This enables us to perform intuitive operations on custom objects, like adding two complex numbers or matrices.
02

Operator Overloading in Integers

When it comes to built-in data types such as integers, operator overloading is not possible. Integers are primitive data types, meaning their behavior is defined at the language level and cannot be modified by programmers.
03

Reason Why Operator Overloading Doesn't Work on Integers

At a lower level, languages such as C++ or Python are implemented with other programming languages, often C. In the implementation, integers are a native C data type, and their operations are hard-coded; therefore, their behavior cannot be altered. Additionally, the behavior of integer addition is well-defined across programming languages, and changing the addition operation's behavior could lead to unintended consequences and make code harder to read, understand, and maintain.
04

Conclusion

To sum up, it is not possible to use operator overloading to change the behavior of the addition operation on integers. This is due to the fact that integers are primitive data types in programming languages, and their behavior is defined at the language level, which cannot be modified by programmers.

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Most popular questions from this chapter

Here is a definition of a class called Pairs. Objects of type Pairs can be used in any situation where ordered pairs are needed. Your task is to write implementations of the overloaded operator >> and the overloaded opera- tor << so that objects of class Pairs are to be input and output in the form (5,6) (5,-4) (-5,4) or (-5,-6). You need not implement any constructor or other member, and you need not do any input format checking. #include using namespace std; class Pairs { public: Pairs( ); Pairs(int first, int second); //other members and friends friend istream& operator>> (istream& ins, Pairs& second); friend ostream& operator<< (ostream& outs, const Pairs& second); private: int f; int s; };

What is the difference between a (binary) operator and a function?

Write a function definition for a function called before that takes two arguments of the type DayofYear, which is defined in Display \(11.1 .\) The function returns a bool value and returns true if the first argument represents a date that comes before the date represented by the second argument; otherwise, the function returns false. For example, January 5 comes before February 2

Following is the definition for a class called Percent. Objects of type Percent represent percentages such as 10% or 99%. Give the definitions of the overloaded operators >> and << so that they can be used for input and output with objects of the class Percent. Assume that input always consists of an integer followed by the character ‘%’, such as 25%. All per- centages are whole numbers and are stored in the int member variable named value. You do not need to define the other overloaded operators and do not need to define the constructor. You only have to define the overloaded operators >> and <<. #include using namespace std; class Percent { public: friend bool operator ==(const Percent& first, const Percent& second); friend bool operator <(const Percent& first, const Percent& second); Percent( ); Percent(int percent_value ); friend istream& operator >>(istream& ins, Percent& the_object); //Overloads the >> operator to input values of type //Percent. //Precondition: If ins is a file input stream, then ins //has already been connected to a file. friend ostream& operator <<(ostream& outs, const Percent& a_percent); //Overloads the << operator for output values of type //Percent. //Precondition: If outs is a file output stream, then //outs has already been connected to a file. private: int value; };

Change the class TemperatureList given in Display 11.10 by adding a member function called get_size, which takes no arguments and returns the number of temperatures on the list.
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