libfxd is a C++20 headers-only library that implements fixed-point types as a templated
class. It's licensed under the Apache Public License 2.0 (see the file COPYING.APL).
Since it's a headers-only library, no compilation is necessary; the compiler just needs to
locate the headers using an option like -I /path/to/libfxd/include.
To install the headers, use the standard Automake procedure:
./configure --prefix=/usr
make
sudo make install
See the INSTALL file and/or run ./configure --help for more details.
If the source code was checked out from the repository, you may need to first run the
bootstrap script to create the configure script.
Sample program:
#include <iostream>
#include <fxd/fxd.hpp>
int main()
{
using F = fxd::fixed<20, 12>;
F a = 5;
F b = 2.5;
F c;
std::cout << "Enter a value: ";
std::cin >> c;
F d = (a + b + c) / 3;
std::cout << "Average: " << d << std::endl;
std::cout << "which has raw value: " << d.raw_value << std::endl;
}Documentation is available in the doc directory in .md text files (using Markdown
syntax.) If Doxygen is available, it will be automatically built inside doc/html.
Examples can be found in the examples directory.