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Module: Prelude
Function: succ
Type: Enum a => a -> a
Class: Enum
Description: returns following item in an enumeration (integers and characters in the following examples).
Related: enumFrom, enumFromThen, enumFromThenTo, enumFromTo, fromEnum, pred, toEnum

Example 1

Input: succ 5

Output: 6

Example 2

Input: succ 'a'

Output: 'b'

Example 3
Program source: 
data XXX = AA|BB|CC|DD deriving (Enum, Show)

Input: succ BB

Output: CC




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