Number conversions, like floats to doubles
Marcin 'Qrczak' Kowalczyk
qrczak at knm.org.pl
Sun Nov 9 01:11:09 EST 2003
W liście z sob, 08-11-2003, godz. 22:41, Ben Escoto pisze:
> If I want to convert a Float to a Double, should I use
>
> fromRational . toRational
realToFrac :: (Fractional b, Real a) => a -> b
It is actually defined as fromRational . toRational but GHC knows to
generate specialized code for particular types.
> And similarly, (fromInteger . toInteger) is the right way to convert
> the integral types?
fromIntegral :: (Num b, Integral a) => a -> b
--
__("< Marcin Kowalczyk
\__/ qrczak at knm.org.pl
^^ http://qrnik.knm.org.pl/~qrczak/
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