CeCILL FREE SOFTWARE LICENSE AGREEMENT
Version 2.1 dated 2013-06-21

Copyright (c) 2026 Grégory Beurier and contributors.

Notice

This Agreement is a Free Software license agreement that is the result
of discussions between its authors in order to ensure compliance with
the two main principles guiding its drafting:

  * firstly, compliance with the principles governing the distribution
    of Free Software: access to source code, broad rights granted to users,
  * secondly, the election of a governing law, French law, with which it
    is conformant, both as regards the law of torts and intellectual
    property law, and the protection that it offers to both authors and
    holders of the economic rights over software.

The authors of the CeCILL (for Ce[a] C[nrs] I[nria] L[ogiciel] L[ibre])
license are:

Commissariat à l'Energie Atomique et aux Energies Alternatives - CEA,
a public scientific, technical and industrial research establishment,
having its principal place of business at 25 rue Leblanc, immeuble Le
Ponant D, 75015 Paris, France.

Centre National de la Recherche Scientifique - CNRS, a public scientific
and technological establishment, having its principal place of business
at 3 rue Michel-Ange, 75794 Paris cedex 16, France.

Institut National de Recherche en Informatique et en Automatique - Inria,
a public scientific and technological establishment, having its principal
place of business at Domaine de Voluceau, Rocquencourt, BP 105, 78153 Le
Chesnay cedex, France.

Full license text: https://cecill.info/licences/Licence_CeCILL_V2.1-en.txt
(or https://cecill.info/licences/Licence_CeCILL_V2.1-fr.txt for the French version)

This software is provided AS IS, without warranty of any kind, express or
implied. See the CeCILL-2.1 text for the complete legal terms.

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Vendored third-party components (test-only or build-only - not linked
into the public `libp4a` shared library):

* doctest (cpp/tests/doctest/doctest.h) - MIT License
  Copyright (c) 2016-2024 Viktor Kirilov
  Used to compile the test executable. Not part of any shipped artefact.

Additional vendored components will be listed here as they are added,
each with their license and the path within the repository.
