How to find the number of digits after the dot?

Question

C++ / C#

The number 0.343 how to find the number of digits after the dot?

Answer 1

Hold

Answer 2

In the binary system, this decimal number cannot be represented as a finite fraction. Those. the answer depends on the bitness of the computer, etc. etc. and it will not be 3 at all. Unless, of course, we are talking about a number and not a string.