The IEEE 754 floating-point standard even includes decimal- instead of binary-based floating-point types, i.e. which can represent e.g. 0.1 accurately: https://

The IEEE 754 floating-point standard even includes decimal- instead of binary-based floating-point types, i.e. which can represent e.g. 0.1 accurately: https://en.wikipedia.org/wiki/IEEE_floating_point#Basic_and_interchange_formats https://en.wikipedia.org/wiki/IEEE_floating_point#Basic_and_... I think this is what IBM's POWER CPUs implement. And there's even a proposal to add it to the C++ standard: http://open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3871.html http://open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3871.ht... And the C standard: http://www.open-std.org/JTC1/SC22/WG14/www/docs/n1312.pdf http://www.open-std.org/JTC1/SC22/WG14/www/docs/n1312.pdf