翻訳と辞書 Words near each other ・ cal ・ calc ・ calculator ・ calculus of communicating systems ・ calendar api ・ calendar application programming interface ・ caliban ・ calico ・ california state university san marcos ・ call unix ・ call-by-name ・ call-by-need ・ call-by-reference ・ call-by-value ・ call-by-value-result ・ call-level interface ・ call-with-current-continuation ・ call/cc ・ callback ・ callee Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク call-by-name ： FOLDOC call-by-name (CBN) (Normal order reduction, leftmost, outermost reduction). An argument passing convention (first provided by ALGOL 60?) where argument expressions are passed unevaluated. This is usually implemented by passing a pointer to a thunk - some code which will return the value of the argument and an environment giving the values of its free variables. This evaluation strategy is guaranteed to reach a normal form if one exists. When used to implement functional programming languages, call-by-name is usually combined with graph reduction to avoid repeated evaluation of the same expression. This is then known as call-by-need. The opposite of call-by-name is call-by-value where arguments are evaluated before they are passed to a function. This is more efficient but is less likely to terminate in the presence of infinite data structures and recursive functions. Arguments to macros are usually passed using call-by-na スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.