Template (C++)

Generic type features in C++ Templates are a feature of the C++ programming language that allow functions and classes to operate with generic types. This allows a function or class declaration to reference via a generic variable another different class (built-in or newly declared data type) without creating a full declaration for each of these different classes. In plain terms, a templated class or function would be the equivalent of (before "compiling") copying and pasting the templated block of code where it is used, and then replacing the template parameter with the actual one. The C++ Standard Library provides many useful functions within a framework of connected templates. Major inspirations for C++ templates were the parameterized modules provided by the language CLU and the generics provided by Ada. Technical overview There are three kinds of templates: function templates, class templates and, since C++14, variable templates. Since C++11, templates may be either variadic or non-variadic; in earlier versions of C++ they are always non-variadic. C++ Templates are Turing complete. Function templates A function template behaves like a function except that the template can accept