| Metadata-Version: 1.0 |
| Name: cdecimal |
| Version: 2.3 |
| Summary: Fast arbitrary precision correctly-rounded decimal floating point arithmetic. |
| Home-page: http://www.bytereef.org/mpdecimal/index.html |
| Author: Stefan Krah |
| Author-email: skrah@bytereef.org |
| License: BSD License |
| Download-URL: http://www.bytereef.org/software/mpdecimal/releases/cdecimal-2.3.tar.gz |
| Description: |
| Overview |
| -------- |
| |
| The ``cdecimal`` package is a fast drop-in replacement for the ``decimal`` module |
| in Python's standard library. Both modules provide complete implementations of |
| Mike Cowlishaw/IBM's ``General Decimal Arithmetic Specification``. |
| |
| Testing |
| ------- |
| |
| Both ``cdecimal`` and the underlying library - ``libmpdec`` - are extremely |
| well tested. ``libmpdec`` is one of the few open source projects with 100% |
| code coverage. ``cdecimal`` is rigorously tested against ``decimal.py``. |
| |
| Short benchmarks |
| ---------------- |
| |
| Typical performance gains are between 30x for I/O heavy benchmarks |
| and 80x for numerical programs. In a database benchmark, cdecimal |
| exhibits a speedup of 12x over decimal.py. |
| |
| +---------+-------------+--------------+-------------+ |
| | | decimal | cdecimal | speedup | |
| +=========+=============+==============+=============+ |
| | pi | 42.75s | 0.58s | 74x | |
| +---------+-------------+--------------+-------------+ |
| | telco | 172.19s | 5.68s | 30x | |
| +---------+-------------+--------------+-------------+ |
| | psycopg | 3.57s | 0.29s | 12x | |
| +---------+-------------+--------------+-------------+ |
| |
| Documentation |
| ------------- |
| |
| Since ``cdecimal`` is compatible with ``decimal.py``, the official documentation |
| is valid. For the few remaining differences, refer to the second link. |
| |
| * `Decimal module <http://docs.python.org/dev/py3k/library/decimal.html>`_ |
| * `Differences between cdecimal and decimal <http://www.bytereef.org/mpdecimal/doc/cdecimal/index.html>`_ |
| |
| Linux Notes |
| ----------- |
| |
| The build process requires a working C compiler and a *full* Python install with |
| development headers. Linux distributions often ship the Python header files as |
| a separate package, called *python-dev* or *python-devel*. |
| |
| Install headers on Debian/Ubuntu: |
| |
| * ``sudo apt-get install python-dev`` |
| |
| Windows Notes |
| ------------- |
| |
| * `Binary installers <http://www.bytereef.org/mpdecimal/download.html>`_ |
| |
| Links |
| ----- |
| |
| * `cdecimal project homepage <http://www.bytereef.org/mpdecimal/index.html>`_ |
| * `cdecimal benchmarks <http://www.bytereef.org/mpdecimal/benchmarks.html>`_ |
| |
| |
| Keywords: decimal,floating point,correctly-rounded,arithmetic,arbitrary precision |
| Platform: Many |
| Classifier: Development Status :: 5 - Production/Stable |
| Classifier: Intended Audience :: Developers |
| Classifier: Intended Audience :: Education |
| Classifier: Intended Audience :: End Users/Desktop |
| Classifier: Intended Audience :: Financial and Insurance Industry |
| Classifier: Intended Audience :: Science/Research |
| Classifier: License :: OSI Approved :: BSD License |
| Classifier: Programming Language :: C |
| Classifier: Programming Language :: Python :: 2.5 |
| Classifier: Programming Language :: Python :: 2.6 |
| Classifier: Programming Language :: Python :: 2.7 |
| Classifier: Programming Language :: Python :: 3 |
| Classifier: Programming Language :: Python :: 3.1 |
| Classifier: Programming Language :: Python :: 3.2 |
| Classifier: Operating System :: OS Independent |
| Classifier: Topic :: Scientific/Engineering :: Mathematics |
| Classifier: Topic :: Software Development |
