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libfxp

Cross-platform fixed point maths library with a support of macro templates written fully on C.

Russian/Русский

Description

This library provides you with type-generic functions that perform fixed point calculations. All operatable types are standard fixed size integers (see inttypes.h). Due to macro templates implementation there is a possibility of using this library with platform- or compiler-dependent integers (for example, with __int128_t, which is not supported by default). The format of numbers (number of bits in fractional part) is specified in runtime by the user.

Documentation

In development.

Getting started

Building

CMake of version not less then 3.7.2 is required in order to build the tests. This list of console comands may be used to build the project from the directory that is two levels below the CMakeLists.txt file:

cmake -DCMAKE_BUILD_TYPE=Release ../..
make

Planned features

Documentation

  • Documentation file.
  • Wiki.

Library features

  • Basic arithmetic operations (addition, subtracton, multiplication, division).
  • Exponentiation and root.
  • Logarithm and exponent.
  • Trigonometric functions.
  • Matrix operations.