This repository provides a C/C++ library of correctly-rounded, high-performance mathematical functions for IEEE 754 binary64 (double-precision) arithmetic. The library builds on Linux, macOS, and Windows.

The implementation is a snapshot of the src/binary64 directory of the CORE-MATH project at commit 8199457ec422ba0587e09e0651d4e05a328ab893 from 2026-02-16, with the build and testing infrastructure removed. The function sources are otherwise unchanged.

The lgamma function is omitted because Windows' math.h does not provide signgam.

• CMake
• GCC, the GNU Compiler Collection

• CMake (can be installed through homebrew using brew install cmake)
• XCode Command Line Tools

• CMake
• Microsoft Visual Studio 2026 configured for Desktop development with C++ and C++ Clang tools for Windows

Run ./build.sh. This creates a clean build directory and compiles the library there.

On Windows, the build uses the x64 platform.

On x86_64 and AMD64 systems, the build uses the x86-64-v3 architecture.