SNAP
1. Early (IBM 360?) i NTerpreted text-processing language for beginners, close to basic English. ["Computer Programming in English", M.P. Barnett, Harcourt Brace 1969]. 2. ["Some Proposals for SNAP, A Language with Formal Macro Facilities", R.B. Napper, Computer J 10(3):231-243 (1967)]. [same as 1?] 3. To replace a poi NTer to a poi NTer with a direct poi NTer to replace an old address with the forwarding address found there. If you telephone the main number for an institution and ask for a particular person by name, the operator may tell you that person' s extension before connecting you, in the hopes that you will "snap your poi NTer" and dial direct next time. The underlying metaphor may be that of a rubber band stretched through a number of i NTermediate poi NTs if you remove all the thumbtacks in the middle, it snaps i NTo a straight line from first to last. See chase poiNTers. Often, the behaviour of a trampoline is to perform an error check once and then snap the poi NTer that invoked it so as henceforth to bypass the trampoline (and its one-shot error check). In this co NText one also speaks of "snapping links". For example, in a Lisp impleme NTation, a function i NTerface trampoline might check to make sure that the caller is passing the correct number of argume NTs if it is, and if the caller and the callee are both compiled, then snapping the link allows that particular path to use a direct procedure-call instruction with no further overhead. [ Jargon File] In addition suitable coNTeNTs: [ 2 ] [ = ] [ ad ] [ address ] [ ag ] [ ai ] [ al ] [ am ] [ an ] [ app ] [ ar ] [ arc ] [ arg ] [ argumeNT ] [ as ] [ at ] [ av ] [ B ] [ b ] [ ba ] [ bb ] [ be ] [ bo ] [ bot ] [ bt ] [ by ] [ C ] [ ca ] [ callee ] [ ch ] [ chase poiNTers ] [ ci ] [ ck ] [ cl ] [ co ] [ com ] [ Computer ] [ con ] [ connect ] [ coNText ] [ cr ] [ cu ] [ dd ] [ de ] [ ding ] [ du ] [ E ] [ ec ] [ ed ] [ edu ] [ ee ] [ eg ] [ eh ] [ English ] [ er ] [ era ] [ error ] [ es ] [ et ] [ extension ] [ fi ] [ file ] [ fo ] [ for ] [ forward ] [ fr ] [ function ] [ ge ] [ gh ] [ gi ] [ gl ] [ gr ] [ gu ] [ h ] [ hat ] [ hop ] [ hr ] [ ht ] [ hu ] [ IBM ] [ IBM 360 ] [ id ] [ ie ] [ il ] [ in ] [ iNT ] [ iNTerface ] [ iNTerpreted ] [ io ] [ ir ] [ is ] [ it ] [ J ] [ Jargon File ] [ ke ] [ la ] [ language ] [ ld ] [ Lex ] [ li ] [ line ] [ link ] [ links ] [ Lisp ] [ lose ] [ ls ] [ ly ] [ M ] [ ma ] [ Mac ] [ meta ] [ mm ] [ mo ] [ mod ] [ module ] [ mp ] [ N ] [ na ] [ nc ] [ ne ] [ net ] [ ng ] [ nn ] [ no ] [ ns ] [ nu ] [ O ] [ om ] [ op ] [ operator ] [ overhead ] [ pa ] [ path ] [ pe ] [ perf ] [ ph ] [ ping ] [ pl ] [ poiNT ] [ poiNTer ] [ pr ] [ procedure ] [ process ] [ processing ] [ query ] [ rc ] [ re ] [ rete ] [ rl ] [ ro ] [ ru ] [ rw ] [ S ] [ sa ] [ sam ] [ se ] [ sh ] [ si ] [ sk ] [ sn ] [ SNA ] [ so ] [ st ] [ struct ] [ su ] [ T ] [ tap ] [ tc ] [ text ] [ th ] [ thumb ] [ to ] [ tr ] [ trampoline ] [ tt ] [ ua ] [ ug ] [ um ] [ us ] [ ve ] [ vi ] [ ws ]
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