GameMath | C mathmatical library derived from the FreeBSD msun library

GameMath is a C library. GameMath has no bugs, it has no vulnerabilities and it has low support. However GameMath has a Non-SPDX License. You can download it from GitHub.

GameMath is a C mathmatical library derived from the FreeBSD msun library. The idea is to have a self contained floating point math library that will behave consistently on IEEE754 conformant systems making floating point operations reproducible across compilers and hardware. This is needed for games where the network and replay code relies on clients maintaining their own simulation state (so called lock step simulation) and only pass lists of commands between clients. Without consistent floating point results at the binary level the simulations can diverge and go out of sync. Relying on the platform libc math libraries is generally fraught with issues. Some call the CPU trancedental instructions where available which can produce different results on different CPU models. Even where this isn't the case different versions of the libraries can produce different results between updates on the same platform and are rarely consistent between platforms. By using a common software library for these operations we can remove one source of inconsistency.