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C++ Academy · Lesson

Writing a Modern Header-Only Utility Library

Walk through publishing a small modern C++ header-only utility library.

A Realistic Goal

Build a small header-only library that demonstrates modern C++ practices: clear API, namespaces, no global state, concepts where helpful.

Project Layout

A typical layout:

  • include/mylib/util.hpp — public headers
  • include/mylib/detail/impl.hpp — internals
  • tests/ — unit tests
  • examples/ — sample programs
  • CMakeLists.txt

All lessons in this course

  1. Header-Only vs Compiled Libraries
  2. API Versioning and ABI Stability
  3. Hiding Implementation with PIMPL
  4. Writing a Modern Header-Only Utility Library
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