ANSI C General Decimal Arithmetic Library The decNumber library implements the General Decimal Arithmetic Specification in ANSI C. This specification defines a decimal arithmetic which meets the requirements of commercial, financial, and human-oriented applications. It also matches the decimal arithmetic in the IEEE 754 Standard for Floating Point Arithmetic. The library fully implements the specification, and hence supports integer, fixed-point, and floating-point decimal numbers directly, including infinite, NaN (Not a Number), and subnormal values. Both arbitrary-precision and fixed-size representations are supported. Refer to the package's PDF file for more information. This version is the one used by the SoftDevLabs version of Hercules 4.x (Hyperion).