How do I use decimal (float) in C++?

Question

According to IEEE 754-2008 there are

There are three binary floating-point basic formats (which can be encoded using 32, 64 or 128 bits) and two decimal f

Answer 1

Intel has a decimal floating-point library which will work with either ICC or GCC on Mac, Linux, HP/UX, or Solaris; or the ICC or CL compilers on Windows. It's not as useful as using operators on built-in types. If you're using C++, maybe someone has already written helpful classes that override all the necessary operators for that.