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The following list of C++ template libraries details the various libraries of templates available for the C++ programming language.. The choice of a typical library depends on a diverse range of requirements such as: desired features (e.g.: large dimensional linear algebra, parallel computation, partial differential equations), commercial/opensource nature, readability of API, portability or ...
The curiously recurring template pattern (CRTP) is an idiom, originally in C++, in which a class X derives from a class template instantiation using X itself as a template argument. [1] More generally it is known as F-bound polymorphism , and it is a form of F -bounded quantification .
In C++ templates, compile-time cases were historically performed by pattern matching over the template arguments. For example, the template base class in the Factorial example below is implemented by matching 0 rather than with an inequality test, which was previously unavailable. However, the arrival in C++11 of standard library features such ...
Each assignment to a Vec, such as Vec x = a + b + c, generates a new Vec constructor if needed by template instantiation. This constructor operates on three Vec; it allocates the necessary memory and then performs the computation. Thus only one memory allocation is performed. Example implementation of expression templates :
The Standard Template Library (STL) is a software library originally designed by Alexander Stepanov for the C++ programming language that influenced many parts of the C++ Standard Library. It provides four components called algorithms , containers , functions , and iterators .
Formats a time of day Template parameters [Edit template data] Parameter Description Type Status Hour hour hh 1 Hour of the day, in 24 hour format Example 13 Auto value Number required Minute minute mm 2 minutes after the hour Example 3 Auto value 0 Number suggested Second second ss sec 3 Seconds after the minute Number optional Hour format hour_format Formats hours and whether to render AM/PM ...
The time is calculated based on the offset from UTC for the specified time zone taking into account whether daylight saving time is currently active in that time zone. Note: Most Wikipedia pages display a cached version of the page to reduce server load, so the template will only display the current time as of when the page was last parsed .
Note: This template is used to create general time signatures for Template:Music. Invoke as {{music|time|5|4}} for 5 4, but for pages with heavy use of templates, this template, {{Time signature}}, should be used instead.