# HW4_Key - Chapter 7(Problem Set Pages 306 308 3 Do you...

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١ Chapter 7: (Problem Set: Pages 306 – 308) 3) Do you think the elimination of overloaded operators in your favorite language would be beneficial? Why or why not? Answer: - Yes, I think that the elimination of overloaded operators in my favorite language would be beneficial. - Elimination of overloaded operators will result in: - Enhance and increase readability. - Minimize the compiler overhead (choosing the correct operator meaning). 4) Would it be a good idea to eliminate all operator precedence rules and require parentheses to show the desired precedence in expressions? Why or why not? Answer: - No, it is not a good idea to eliminate all operator precedence rules. - Although this idea sounds good, but in fact it affects the flexibility provided by the language since only one way is used to show the precedence in expressions. Moreover, using parentheses will future more affects writability and in some cases readability. 10) Assume the following rules of associativity and precedence for expressions: Precedence: Highest *, /, not +, -, &, mod - (unary) =, /=, <, <=, >=, > and Lowest or , xor Associativity: Left to right Show the order of evaluation of the following expressions by parenthesizing all subexpressions and placing a superscript on the right parenthesis to indicate order. For example, for the expression: a + b * c + d the order of evaluation would be represented as ((a + (b * c) 1)2 + d) 3 Expression evaluated Order of evaluation a. a * b - 1 + c Æ ( ( ( a * b ) 1 – 1 ) 2 + c ) 3 b. a * (b -1) / c mod d Æ ( ( ( a * ( b – 1 ) 1 ) 2 / c ) 3 mod d )

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HW4_Key - Chapter 7(Problem Set Pages 306 308 3 Do you...

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