Haskell\'s website introduces a very attractive 5-line quicksort function, as seen below. quicksort [] = []
This question arose on #haskell irc chat: How can I start ghci without importing prelude? The possible answer seemed obvious:
Given data BTree a = End Node a (BTree a) (BTree a) deriving(Show,Eq,Ord) data Msg = Msg { from :: S开发者_运维问答tring
Inspired by Comparing list length If I want to find the longest list in a list of lists, the simplest way is probably:
I can do this for system functions like const by selecting it, right clicking and choosing search(metadata). The same does not work for user defined functions.
I am trying to decode a pcap file and its working fine except couple of things. import Network.Pcap import System.IO
Introduction I\'m using Haskell\'s Text.Regex library and I want to match some characters that normally have meaning in regular expressions. According to Text.Regex\'s documentation,
Given a tuple of type (Int, a) such as (n,c), I wish to construct a list [a] where the element c is repeated n times, i.e., (4, \'b\') becomes \"bbbb\". My current solution is the f开发者_Python百科ol
One of the nice things about Haskell is the ability to use infix notation.开发者_运维知识库 1 : 2 : 3 : []:: Num a => [a]
Let\'s say I have a function which can calculate power of four of a number defined by let power4 x = x*x*x*x
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