A template is a C++ programming feature that allows you to use generic types in functions and classes, allowing you to use multiple data types without having to rewrite entire code blocks.
In contrast to inheritance and composition, which allow you to reuse object code, C++ templates allow you to reuse source code. Templates are divided into two categories in C++: class templates and function templates. To write generic functions that may be used with any type, utilize function templates.
A programmer does not need to develop multiple copies of a function to execute a comparable operation on various data types. Instead, the programmer can create a template-based C++ function that works with any data type. Function templates and class templates are the two forms of templates in C++.
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