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Asked: 2026-05-30T09:36:48+00:00

I’m working on parsing with haskell, I want to parse a timestamp value expressed

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I’m working on parsing with haskell, I want to parse a timestamp value expressed in such a way 

946685561.618847

I have no problem to recognize (parse) it, but my problem is about the type of the result. I think of two situations:

  1. Is there a fractional type in Haskell so that the result can be associated with the fractional value?
  2. If this is not the case then how to store this value, since Int range from -229 to 229 – 1?
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  1. Editorial Team

    There are actually multiple fractional types–there is even a whole Fractional class.

    The most commonly used is a Double, which is a double-precision floating point number. You can also use Float which is single precision.

    Another alternative is to use the Rational type, which lets you store a number as a ratio of two Integers. (Coincidentally, Integer is an unbounded integral type. Int is the name for the bounded version.)

    These types (Double, Float and Rational) are good for storing rational values. If you just want to store a large integral value, use Integer which is unbounded. (That is, it can store arbitrarily sized integers.)

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