c++ - what is the best way to avoid negative zero in output?

Question

As in this question is said, there is some differences between negative and positive zero in floating point numbers. I know it's because of some important reasons. what I want to know is a short code to avoid negative zero in output.

for example in the following code:

cout << fixed << setprecision(3);
cout << (-0.0001) << endl;

"-0.000" is printed. but I want "0.000".

Note all other negative numbers (e.g. -0.001) should still be printed with the minus sign preceding them, so simply * -1 will not work.

Answer 1

How about:

cout << (value == 0.0 ? abs(value) : value)  << endl;