deka-tests (hackage): deka provides decimal floating point arithmetic.  It is based on mpdecimal, the C library used to provide support for the Decimal module in Python 3.  You will need to install mpdecimal to use deka; otherwise your executables will not link.  It is available at  http://www.bytereef.org/mpdecimal/  mpdecimal has also been packaged for some Linux distributions, such as Debian (libmpdec-dev - available in Jessie and later) and Arch (mpdecimal).  mpdecimal, in turn, implements the General Decimal Arithmetic Specification, which is available at  http://speleotrove.com/decimal/  For more on deka, please see the Github home page at  https://github.com/massysett/deka  This package contains only tests, so that other packages may also use the tests.
Keywords: bsd3|library|math|program