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Generally, a reference is a value that enables a program to directly access the particular data item. Most programming languages support some form of reference. For the specific type of reference used in the C++ language, see reference (C++). The notion of reference is also important in relational database theory; see referential integrity.
In addition to the singular and plural reference (in many languages grammatically obvious), linguists typically distinguish individual or specific reference, exemplified by each case presented so far, from generic reference, where a singular expression picks out a type of object rather than an individual one, as in The bear is a dangerous animal.
A general reference is a citation to a reliable source that supports content, but is not linked to any particular text in the article through an inline citation. General references are usually listed at the end of the article in a "References" section, and are usually sorted by the last name of the author or the editor.
Manually adding references can be a slow and tricky process. Fortunately, there is a tool called "RefToolbar" built into the Wikipedia edit window, which makes it much easier. To use it, click on Cite at the top of the edit window, having already positioned your cursor after the sentence or fact you wish to reference. Then select one of the ...
In the C++ programming language, a reference is a simple reference datatype that is less powerful but safer than the pointer type inherited from C.The name C++ reference may cause confusion, as in computer science a reference is a general concept datatype, with pointers and C++ references being specific reference datatype implementations.
Dictionaries and encyclopedias: reference works containing multiple entries for different words or topics. Wikipedia is an example of an encyclopedia. Archival and other primary sources: historic documents. This page outlines appropriate use of primary sources.
Relative density, also called specific gravity, [1] [2] is a dimensionless quantity defined as the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity for solids and liquids is nearly always measured with respect to water at its densest (at 4 °C or 39.2 °F); for gases, the ...
The former leads predominantly to a specific noun phrase. The latter can be either specific or non-specific. [1] I'm looking for the manager, Ms Lee. [definite, specific] I'm looking for the manager, whoever that may be. [definite, non-specific] There's a certain word that I can never remember. [indefinite, specific] Think of a word, any word.