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| Module: | Prelude |
|---|---|
| Function: | enumFromThen |
| Type: | Enum a => a -> a -> [a] |
| Class: | Enum |
| Description: | returns an array of members of an enumeration starting with the first argument and with the distances 0,1,2,... * distance from the first argument to the second one, it is equvalent to syntax. |
| Related: | enumFrom, enumFromThenTo, enumFromTo, fromEnum, pred, succ, toEnum |
Input: take 10 (enumFromThen 'A' 'E')
Output: "AEIMQUY]ae"
Input: take 10 (enumFromThen 4 7)
Output: [4,7,10,13,16,19,22,25,28,31]
Program source: data XXX = AA|BB|CC|DD|EE|FF|GG deriving (Enum, Show)
Input: enumFromThen AA CC
Output: [AA,CC,EE,GG]