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In the C++ Standard Library, several algorithms use unqualified calls to swap from within the std namespace. As a result, the generic std::swap function is used if nothing else is found, but if these algorithms are used with a third-party class, Foo, found in another namespace that also contains swap(Foo&, Foo&), that overload of swap will be used.
Although namespaces are used extensively in recent C++ code, most older code does not use this facility because it did not exist in early versions of the language. For example, the entire C++ Standard Library is defined within namespace std , but before standardization many components were originally in the global namespace.
By merely typing into the search box, "WP:" (an easier-to-type alias of "Wikipedia:"), followed by the title/name or phrase of just about anything you see mentioned by regular editors, or come across in Wikipedia's interface, you can probably find a targeted, behind-the-scenes information/help page or how-to guide providing relevant information ...
The project namespace or Wikipedia namespace is a namespace consisting of administration pages with information or discussion about Wikipedia. Pages in this namespace will always have the prefix Wikipedia:. They can also be reached by alias WP: or the standard (for any MediaWiki site) prefix Project:. Its namespace number is four (4).
A Wikipedia namespace is a set of Wikipedia pages whose names begin with a particular reserved word recognized by the MediaWiki software (followed by a colon). For example, in the user namespace all titles begin with the prefix User:. In the case of the article (or main) namespace, in which encyclopedia articles appear, the reserved word and ...
To get Wikipedia search results while on any web page, you can temporarily set your web browser's search box to become a Wikipedia search search box, even though you're on another web site (see Help:Searching from a web browser). This trick removes the need to first navigate to Wikipedia from a web page, and then do the search or navigation. It ...
This is a directory of Wikipedia's how-to and information pages, alongside other related administrative pages in the Wikipedia and Help namespaces. New to Wikipedia? See our introduction for aspiring contributors. If you require interactive assistance, see asking for help. For other useful directories and indexes, see directories.
Wikipedia has many talk pages (a.k.a. discussion pages) and other project pages that behave similarly (such as the Help desk, the Village pump, the Reference desk, as well as announcement pages such as the Signpost).