Mastering C++: A Comprehensive Quiz Based on 'Thinking in C++

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Question: 1 / 565

Why is it recommended to put template declarations and definitions into a header file?

To improve readability

To prevent multiple definition errors at link time

To separate interface from implementation

To facilitate template instantiation

It is recommended to put template declarations and definitions into a header file because templates are instantiated at compile time and therefore need to be included in the compilation process. Including the declarations and definitions in a header file allows for easy access and reuse of the templates in other files. Option A regarding readability may be a benefit, but it is not the main reason for placing templates in a header file. Option B is incorrect because multiple definition errors are caused by defining a template in multiple source files, not by declaring and defining it in a header file. Similarly, option C is incorrect as it refers to the separation of interface and implementation for non-template classes, not specifically for templates.

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