C++ header-only template library

Question

Looking at this project (http://www.savarese.com/software/libssrckdtree/) I found the definition \"C++ header-only template library\". At the moment I have basic C++ knowled

Answer 1

Some libraries take the form of a binary file you must link with your project, along with a header file that defines the available classes or functions. A "header-only library" would be one that includes no binary file, just a header you include in your source.

Templates are classes or functions that are customized to their particular use; they're typically defined in a header file since the compiler must read their source to customize them. You can't compile a template to a binary file until you know exactly how it's going to be used, so you include the source along with your own code and the compiler can then process them together.