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In computer programming, the scope of a name binding—an association of a name to an entity, such as a variable—is the part of a program where the name binding is valid, that is where the name can be used to refer to the entity. In other parts of the program the name may refer to a different entity (it may have a different binding), or to nothing at all (it may be unbound). The scope of a name binding is also known as the visibility of an entity, particularly in older or more technical literature—this is from the perspective of the referenced entity, not the referencing name.
The term "scope" is also used to refer to the set of all name bindings that are valid within a part of a program or at a given point in a program, which is more correctly referred to as context or environment.Strictly speaking and in practice for most programming languages, "part of a program" refers to a portion of source code (area of text), and is known as lexical scope. In some languages, however, "part of a program" refers to a portion of run time (time period during execution), and is known as dynamic scope. Both of these terms are somewhat misleading—they misuse technical terms, as discussed in the definition—but the distinction itself is accurate and precise, and these are the standard respective terms. Lexical scope is the main focus of this article, with dynamic scope understood by contrast with lexical scope.
In most cases, name resolution based on lexical scope is relatively straightforward to use and to implement, as in use one can read backwards in the source code to determine to which entity a name refers, and in implementation one can maintain a list of names and contexts when compiling or interpreting a program. Difficulties arise in name masking, forward declarations, and hoisting, while considerably subtler ones arise with non-local variables, particularly in closures.
Bushnell 4x scope chief made in Japan with new Leopold rings and mount scope is in great condition with very clear lenses. No issues and ring and mount are new and I still have the packaging(never been mounted to rifle). Asking for best offer, make a fair offer and its yours ill do my best to...
Asking $15.00 each- brand new and unused in original packages.
Purchase one or all
Leupold 50006 Remington 700 Matte Right hand Short action
Leupold 50004 Remington 700,721,725 Matte Right hand Long action. Also fits Ruger M77 Mark V round receiver.
Leupold 50003 Remington 700 Matte Right hand...
Going to make a 1903A4gery out of my Remington 03A3. Anyone have a Redfield Jr. scope base, or either a whole mount? Also, looking for a scant stock and a modified bolt if you have these.
Got cash, lots of ammo to trade, various calibers, vintage weaver scopes, other milsurp bits.
Bassett Machine Picatinny Rail Low Mount package #SMPR-Lo for M-14
The package includes the Mount , a special torque wrench for mounting and full instructions. I got this in trade but I do not have an M14 or M1A so I am seeing if anyone wants it. It appears unused . Price was $159.50 before...
buddy of mine has a gen 1 Thompson contender with a stainless 14 inch 30-30 barrel with muzzle break looking for stainless/silver bases, rings, and scope if the right package came up. thanks in advance, Skip
Picatinny mount 1" Diameter
In good condition
Great for a light or anything else you could think of.
Not much else to say about it I guess... :s0114:
I take PayPal F&F
Shipping ok, buyer pays shipping $2.99
No trade requests please
No F2F requests please
Selling an ADM AD-Recon-SL scope mount with 34mm rings. It's been mounted briefly, but never shot. The ring screws have VibraTite thread locker on them. I don't have the original box I bought another mount, so you can have the box from that one, if you want. Otherwise it's in like-new...
Silver scope mount base and rings, new in packaging, from Weigand Combat Handguns Inc.
- Scope Mount Base for Smith & Wesson factory drilled and tapped K, L, & N frame revolvers: SWHPMNTS
- Weigand Combat Handguns Inc. 1” Scope Mount Rings: MRNG1S*
Rings and base are new, never...