xo-numeric/docs/index.rst

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xo-flatstring documentation master file
xo-flatstring documentation
===========================
xo-flatstring is a lightweight header-only library that provides a constexpr
fixed-size no-allocation string implementation.
Why ``flatstring``?
1. ``flatstring`` instances can be used as template arguments. [1]_
2. ``flatstring`` operations (construction, concatenation, ...) are ``constexpr``, so can be done at compile time. [2]_
3. a ``flatstring`` expression can occupy both compile-time and runtime roles. [3]_
.. [1] A fixed-size char array *can* be used as a template
argument, but char* pointers cannot. Automatic conversion of char arrays to pointers in various contexts
makes them difficult to work with in c++ templates.
.. [2] Although allocation is permitted in constexpr code, it's subject to several restrictions.
it's not yet possible (as of c++23) to use ``std::string`` at compile time.
.. [3] contrast with a solution relying on template arguments, which must then be compile-time-only.
.. toctree::
:maxdepth: 2
:caption: xo-flatstring contents:
install
lessons
flatstring-reference
Indices and Tables
------------------
* :ref:`genindex`
* :ref:`search`