RPNCalc | A RPN calculator in HTML5 | Apps library
kandi X-RAY | RPNCalc Summary
kandi X-RAY | RPNCalc Summary
A RPN calculator in HTML5 (somewhat...).
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QUESTION
When dealing with reading different types of input from cin, I've originally thought to start to read as if the input is an integer. If that fails, read it as a string.
It works fine until I tried to read operators such as "+", "-". After entering into the if (!fail), it asks for another input as if the input (operators such as "+", "-") is gone. While, the input should not even been read in.
Here is the code:
...ANSWER
Answered 2017-Oct-11 at 21:37Read always a string and then try to convert. "+/-" are consumed while you try to read a number, as they can be part of string representation of a number
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