- functions ending with _ (underscore) usually return a pair (MPFR, Int), where
Int is a return value of a corresponding mpfr_ function. See the MPFR manual for
a description of return values.
- the same functions without the _ return just the MPFR.
- mpfr_ prefix in functions is removed
- _ui and ui_ in function becomes w (stands for Word). For example mpfr_add_ui becomes addw.
- si_ and _si in functions becomes i (stands for Int).
- comparison functions which have _p appended loose it. For example mpfr_less_p becomes less.
- NaN /= Nan,
- Infinity = Infinity,
- -Infinity = -Infinity
- otherwise normal comparison
- compare NaN _ = GT
- compare _ NaN = GT
- infinity < _ = False
- -infinity > _ = False
- NaN [<,>,>=,<=] _ = False
This mimics the behaviour of built in Haskell Float and Double.
Operations defined in Num class will be computed exactly (no precision is lost).
This isn't particularly useful as precision grows fairly quickly and everything becomes
slow so it preferably shouldn't be used.
This module should always be imported qualified.
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