Re^2: How to check if a variable's value is equal to a member of a list of values

I don't see the OP mentioning whether the values to be checked are integer or floating point. Uncertainties in representing floating point values could make hash test useless.

Comment on Re^2: How to check if a variable's value is equal to a member of a list of values

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Re^3: How to check if a variable's value is equal to a member of a list of values by McA (Priest) on Mar 25, 2013 at 19:31 UTC
This is an interesting point. Do you know what value is taken for the hash key? The string representation or the floating point binary representation? When the first is true than what you said falls in the whole class of floating point related problems, e.g. equality of floats. McA	[reply]
Re^4: How to check if a variable's value is equal to a member of a list of values by BrowserUk (Patriarch) on Mar 25, 2013 at 20:01 UTC
Do you know what value is taken for the hash key? Hash keys are always strings. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]