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how to validate range of hex,binary,octal or decimal numbers?
I am needing to validate the numbers entered by the user. The user enters number in either of the four formats namely hex,binary,octal or decimal. I need to validate the numbers such that if the user enters a hex number other than 0 to 7FFFFFFF my if statement should be able to validate that and prompt the user again to enter the number in range. In the same way if a binary number is entered other than
0 to 1111111111111111111111111111111(31 1's) or an octal number other than 0 to 17777777777, again my if statement or any other mechanism should be able to validate and output a warning message about out of range number and prompt the user to enter that number in question again. I just can't start thinking in some direction...please help.
Thanks in advance.