Operator Overloading Notes

# Operator Overloading Notes - 0.1 Friend methods and...

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0.1 Friend methods and operator overloading Overloading binary operators is a one way operation - it only works for the case where you are adding, subtracting, etc. something to the right of the class you’re working with. Consider the following code. ComplexNumber is a class that represents a certain type of number we Fnd in mathematics. A complex number has an imaginary component, and a real component. We would like to be able to add real numbers to complex numbers and vice-versa, and also to equate the two. 1 // File : ComplexNumber . h 2 3 #ifndef COMPLEX NUMBER H 4 #define COMPLEX NUMBER H 5 6 #include < iostream > 7 8 using namespace std ; 9 10 c l a s s ComplexNumber 11 { 12 public : 13 ComplexNumber( double newReal , 14 double newImaginary ) ; 15 16 const 17 ( double someReal ) ; 18 19 ComplexNumber operator+ 20 ( double someReal ) ; 21 22 << 23 const ComplexNumber& cn ) ; 24 25 private : 26 double real , imaginary ; 27 } ; 28

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## This note was uploaded on 02/27/2012 for the course IT 101 taught by Professor Unsure during the Spring '11 term at University of South Africa.

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Operator Overloading Notes - 0.1 Friend methods and...

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