6.9.4. Fractional looking integer literals¶
Allow the use of floating-point literal syntax for integral types.
Haskell 2010 and Haskell 98 define floating literals with the syntax
1.2e6. These literals have the type
Fractional a => a.
The language extension
NumDecimals allows you to also use the
floating literal syntax for instances of
Integral, and have values
(1.2e6 :: Num a => a)