lazy-evaluation

相关标签：javascript jquery android 多少钱 iPhone

self-reference in Haskell functions

I am learning Haskell and I the following expression on Haskell Wiki really puzzled me: fibs = 0 : 1 : zipWith (+) fibs (tail fibs)[详细]

2023-03-13 03:07 分类：问答
How to call the lazy-seq made so far within construction of a lazy-seq?

For my prime numbers lazy seq, I am checking to see if an index value is divisible by all the p开发者_StackOverflowrimes below that current index (prime?). The problem is, when I call primes within it[详细]

2023-03-12 20:48 分类：问答
Lazy loading or proxy pattern in my library

Hi i\'m writing a simple ORM DLL. The library works fine and i would like add some addone - Lazy Loading.[详细]

2023-03-12 14:36 分类：问答
How to emulate laziness

I was w开发者_Python百科atching an interview with John Hughes and he was asked if he missed laziness when he switched from Haskell to Erlang. As an answer he said yes and he used tools to \"emulate\"[详细]

2023-03-12 11:44 分类：问答
What is the point of the strictness declaration?

I am starting Haskell and was looking at some libraries where data types are defined with \"!\". Example from the bytestring library:[详细]

2023-03-11 10:00 分类：问答
Understanding a recursively defined list (fibs in terms of zipWith)

I\'m learning Haskell, and came across the following code: fibs = 0 : 1 : zipWith (+) fibs (tail fibs)[详细]

2023-03-11 08:14 分类：问答
Exact real arithmetic and lazy list performance in C++/Haskell

I recently came across the subject of exact real arithmetic after reading this paper and this paper. I have found a number of papers that discuss realizations of exact arithmetic using signed digit s[详细]

2023-03-10 04:10 分类：问答
Read a file one line at a time in node.js?

I am trying to read a large file one line at a time. I found a question on Quora that dealt with the subject but I\'m missing some connections to make the whole thing fit together.[详细]

2023-03-09 06:51 分类：问答
lazy fetching problem

I have a problem with lazy fetching. here\'s what I have. I have a entity class called channel. and another entity class called show. Each channel has many show\'s. I\'ve implemented hibernate with la[详细]

2023-03-08 04:20 分类：问答
Force pre-computation of a constant

I have a constant declaration in Haskell -- can I force this to be evaluated ahead of time? I\'m seeing some code that looks roughly like,[详细]

2023-03-08 01:39 分类：问答