Safe Haskell	Safe-Inferred
Language	Haskell2010

Prelude.Source.GHC.Types

Synopsis

Documentation

data Bool :: *

Constructors

False
True

Instances

Bounded Bool
Enum Bool
Eq Bool
Ord Bool
Read Bool
Show Bool

data Ordering :: *

Constructors

LT
EQ
GT

Instances

Bounded Ordering
Enum Ordering
Eq Ordering
Ord Ordering
Read Ordering
Show Ordering

data Char :: *

The character type Char is an enumeration whose values represent Unicode (or equivalently ISO/IEC 10646) characters (see http://www.unicode.org/ for details). This set extends the ISO 8859-1 (Latin-1) character set (the first 256 characters), which is itself an extension of the ASCII character set (the first 128 characters). A character literal in Haskell has type Char.

To convert a Char to or from the corresponding Int value defined by Unicode, use toEnum and fromEnum from the Enum class respectively (or equivalently ord and chr).

Instances

Bounded Char
Enum Char
Eq Char
Ord Char
Read Char
Show Char

data Int :: *

A fixed-precision integer type with at least the range [-2^29 .. 2^29-1]. The exact range for a given implementation can be determined by using minBound and maxBound from the Bounded class.

Instances

Bounded Int
Enum Int
Eq Int
Integral Int
Num Int
Ord Int
Read Int
Real Int
Show Int

data Integer :: *

Arbitrary-precision integers.

Instances

Enum Integer
Eq Integer
Integral Integer
Num Integer
Ord Integer
Read Integer
Real Integer
Show Integer

data Float :: *

Single-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE single-precision type.

Instances

Enum Float
Eq Float
Floating Float
Fractional Float
Num Float
Ord Float
Read Float
Real Float
RealFloat Float
RealFrac Float
Show Float

data Double :: *

Double-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE double-precision type.

Instances

Enum Double
Eq Double
Floating Double
Fractional Double
Num Double
Ord Double
Read Double
Real Double
RealFloat Double
RealFrac Double
Show Double