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thunk    音标拼音: [θ'ʌnk]
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thunk
n 1: a dull hollow sound; "the basketball made a thunk as it hit
the rim"

/thuhnk/ 1. "A piece of coding which provides an
address", according to P. Z. Ingerman, who invented thunks in
1961 as a way of binding {actual parameters} to their formal
definitions in {ALGOL 60} {procedure} calls. If a procedure
is called with an expression in the place of a {formal
parameter}, the compiler generates a thunk which computes the
expression and leaves the address of the result in some
standard location.

2. The term was later generalised to mean an expression,
frozen together with its {environment} (variable values), for
later evaluation if and when needed (similar to a
"{closure}"). The process of unfreezing these thunks is
called "forcing".

3. A {stubroutine}, in an {overlay} programming environment,
that loads and jumps to the correct overlay.

Compare {trampoline}.

There are a couple of onomatopoeic myths circulating about the
origin of this term. The most common is that it is the sound
made by data hitting the {stack}; another holds that the sound
is that of the data hitting an {accumulator}. Yet another
suggests that it is the sound of the expression being unfrozen
at argument-evaluation time. In fact, according to the
inventors, it was coined after they realised (in the wee hours
after hours of discussion) that the type of an argument in
{ALGOL 60} could be figured out in advance with a little
{compile-time} thought, simplifying the evaluation machinery.
In other words, it had "already been thought of"; thus it was
christened a "thunk", which is "the past tense of "think" at
two in the morning".

4. ({Microsoft Windows} programming) {universal thunk},
{generic thunk}, {flat thunk}.

[{Jargon File}]

(1997-10-11)


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  • THUNK Definition Meaning - Merriam-Webster
    The meaning of THUNK is dialectal past tense and past participle of think How to use thunk in a sentence
  • Thunk - Wikipedia
    Thunk Look up thunk in Wiktionary, the free dictionary In computer programming, a thunk is a subroutine used to inject a calculation into another subroutine Thunks are primarily used to delay a calculation until its result is needed, or to insert operations at the beginning or end of the other subroutine
  • Thunk. AI | Automate business workflows with reliable AI agents
    Thunk AI is a self-service AI agent platform to automate intelligent workflows and work projects
  • THUNK | English meaning - Cambridge Dictionary
    THUNK definition: 1 a low sound made by something falling or hitting something else heavily: 2 to fall or hit… Learn more
  • THUNK Definition Meaning | Dictionary. com
    THUNK definition: an abrupt, dull sound See examples of thunk used in a sentence
  • Thunk - definition of thunk by The Free Dictionary
    Define thunk thunk synonyms, thunk pronunciation, thunk translation, English dictionary definition of thunk n A dull, hollow sound: the thunk of a metal pipe striking a tree intr v thunked , thunk·ing , thunks To make a dull, hollow sound: "Her hard shoes thunk
  • thunk - Wiktionary, the free dictionary
    thunk Representing the dull sound of the impact of a heavy object striking another and coming to an immediate standstill, with neither object being broken by the impact
  • verbs - Proper usage of the word thunk - English Language Usage . . .
    What is the proper usage of the word thunk? According to Merriam-Webster, it is dialect past and past participle of think Can it be used in a formal context? Is "Who would have thunk?" different
  • thunk, n. ¹ meanings, etymology and more | Oxford English Dictionary
    What is the etymology of the noun thunk? thunk is a variant or alteration of another lexical item Etymons: think n
  • THUNK
    THUNK>ON YouTube Channel launches with Chris Packham interview To celebrate Earth Day, we thought we’d bring a bit of Punk attitude to the climate crisis Hence, we’re delighted to kick off the launch of our YouTube channel, THUNK>ON, with an interview with the one and only broadcaster, environment campaigner and lifelong Punk, Chris Packham





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