Aarith: An Arbitrary Precision Number Library

Aarith is a header-only, arbitrary precision number library for C++. It is intended to be used as a drop-in replacement of the native data types.

Aarith currently supports

• IEEE 754 like floating-point numbers of arbitrary bit-width for both, the exponent and the mantissa

• Two’s complement integers of arbitrary bit-width (signed and unsigned)

General

• Installation
• Quick Start
• Use Cases
• Aarith’s Philosophy
• Literature
• Changelog

Integers

• Two’s Complement Integers
• Arithmetic & Logic Operations
• Comparison Operations

Floating-Point Numbers

• Floating-Point Numbers
• Arithmetic & Logic Operations
• Comparison Operations
• Utilities and Helpers

Approximate Computing

• Anytime Instructions
• The FAU Adder

Publication

If you use Aarith (e.g., in your publication), please cite

Oliver Keszocze, Marcel Brand, Christian Heidorn, und Jürgen Teich. „Aarith: An Arbitrary Precision Number Library“, In: ACM/SIGAPP Symposium On Applied Computing. March 2021.

Bibtex:

@inproceedings{Keszocze2021,
  title = {Aarith: {{An Arbitrary Precision Number Library}}},
  booktitle = {ACM/SIGAPP Symposium On Applied Computing},
  author = {Keszocze, Oliver and Brand, Marcel and Heidorn, Christian and Teich, Jürgen},
  date = {2021-03},
  location = {{Virtual Event, South Korea}},
  series = {{{SAC}}'21}
}

Core & Utilities

• word_array
• String and Number Utilities
• Type Traits
• Bit Cast

Indices and tables

• Index

• Search Page