C/C++ Programming- Definitions of the functions to overload the operators

1.  This chapter uses the class rectangleType to illustate how to overload the operators +, *, ==, !=, >>, and <<. In this exercise, first redefine the class rectangleType by declaring the instance variables as protected and then overload additional operators as defined in parts a to c.

a.  Overload  the  pre-  and  post-increment  and  decrement  operators  to increment  and  decrement,  respectively,  the  length  and  width  of  a rectangle by one unit. (Note that after decrementing the length and width, they must be postive.)

b.  Overload the binary operator - to subtract  the dimensions of one rectangle from the corresponding dimensions of another rectangle. If the resulting dimensions are not positive, output an appropriate message and do not perform the operation.

c.  The operators == and != are overloaded by considering the lengths and widths of rectangles. Redefine the functions to overload the relational operator by considering the areas of rectangles as follows: Two rectangles are the same, if they have the same area; otherwise, the rectangles are not the same. Similary, rectangle yard1 is greater than rectangle yard2 if the area of yard1 is greater than the area of yard2. Overload the remaining relational operators using similar definitions.

d.  Write the definitions of the functions to overload the operators defined in parts a to c.

e.  Write  a  test  program  that  tests  various  operations  on  the class rectangleType.

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