klibcpp

little-big-int

A C++ big-integer library, highly optimized for the small-number case.

libinteger

big num support at binary level

bigINT

Efficient OpenSource Big Integer(Library) Support for C++

KolibriOS-Cpp-Lib

Это библиотека для (чуть более) удобной работы с системным api, UI, и прочим для C++

cp-library

My Competitive Programming Library

bigint

C++ big integer library

cppstorm

MomoLib

A small C++ library for personal usage

awesome-cpp-cn

C++ 资源大全中文版，标准库、Web应用框架、人工智能、数据库、图片处理、机器学习、日志、代码分析等。由「开源前哨」和「CPP开发者」微信公号团队维护更新。

isl-cpp

C++ bindings for the Integer Set Library

giggle-endian

Simple endianness support library for C++

yacppl

Yet Another C++ Library

libnumerixpp

Library for physical and mathematical calculations in C++