Floating point arithmetic types in C++ for any size and any base

In plain words

This is a C++ library implementing floating point arithmetic types that support arbitrary sizes and number bases. It was created as a learning project to explore how floating point numbers work and to develop C++ skills. The project is educational in nature with no practical applications, hosted on GitHub for review and feedback from the programming community.

written from the facts on this page · September 2026

From the sources

A floating point arithmetic which works with types of any mantissa, exponent or base in modern header-only C++. - clemensmanert/fas

fas is floating point arithmetic for arbitrary mantissa and exponent types in modern header-only C++ . It lets you construct various different float types using template parameters for the mantissa, exponent and base. The constructed float-types look and fell like a native float/double for arithmetic operations. Furthermore all methods are performed on the stack and do not require any heap space. fas::Float< int16_t , int8_t > f; This will result in a float using a signed 16 bit mantissa and a signed 8 bit exponent. fas::Float< int16_t , int8_t > f1 = 10 ; auto f2 = f1; f2 = -f1; // => -10 f2 = f1 + 10 ; // => 20 f2 = f1 - f1; // => 0 f2 = f1 * f1; // => 100 f2 = f1 / 20 ; // => 0.5 f2 += 1…from github.com

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