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Compound Operators 03/07/11

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More Operators, First Section 4.4

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Compound Operators Common to have variable on both sides of assignment. sum = sum + data; Compound operators allow compact code. sum += data;

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Compound Operators variable = variable op (expression) can be written: variable op= expression

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Compound Operators += -= *= /= %=

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Increment and Decrement n++ ++n k-- --k Operands must be variables Change value of variables, side effect

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Position of Increment/Decrement Where placed determines value used in the expression c = 5; cout << c++ ;cout << ++c;cout << c << endl; OUTPUT: 5 6 6 6

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