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Objective-c Basic calculator class

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项目描述

In "iPhoneUnitTests" sample code, there is Calculator class in CalculatorLib/Calculator.h. This class has very simple calculator functions, but I need "basic" calculator functions as in Calculator App in Mac OS (I don't need complex function, all I need is functions when you change "view" to "basic" in the Calculator App and "AC").

* MC

* M+

* M-

* MR

* C

* +_

* AC

* handle e+

see [url removed, login to view]

Example.

4 * 2 + 3 C 2 = 10

4 * 2 + 3 AC 2 = 2

2 * 3 = = 18

3 * 2 == 12

2 + 3 == 8

123456789 * 123456789 = [url removed, login to view]

1 / 123456789 = [url removed, login to view]

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