Why is it preferred to declare functions in header files but not define them?

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header-only header-library single-header-lib single-header Cpp11

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  • awesome-hpp

    A curated list of awesome header-only C++ libraries

    • That doesn't mean there aren't any header-only libraries. Usually small libraries implement everything in a header file. Checkout this GitHub link. With such header-only-libraries, all you have to do is include the header, write code which uses them, compile and you are done. This also doesn't involve the headache of setting up complicated build systems.

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    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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