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Because the implementation is necessary at compile-time in order to instantiate the template. &nbsp;For example, in order to instantiate list&lt;MyClass&gt;, the implementation of the list template is needed by the compiler (e.g. in order to determine the size of the nodes in the linked list).<br />
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-- Zizzer
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Because the implementation is necessary at compile-time in order to instantiate the template.  For example, in order to instantiate list<MyClass>, the implementation of the list template is needed by the compiler (e.g. in order to determine the size of the nodes in the linked list).

-- Zizzer

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hi,<br />
Why do we include the template class implementation file in header file?<br />
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hi,
Why do we include the template class implementation file in header file?



template class

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.