How does your programming language handle “minus zero” (-0.0)?

Re:How does your programming language handle “minus zero” (-... by mattgreenrocks on Friday March 05, 2021 @11:56AM (#26359035)

The issue is that the representation of floating point numbers imposes additional cognitive burden that the code must handle. How does the web server header parsing code handle positive/negative infinity? How about NaN?

NaNs/infs are particularly vicious, as they propagate through computations.

[ Parent | on HN ]

Re:How does your programming language handle “minus zero” (-... by rsj_hn on Friday March 05, 2021 @06:19PM (#26363537)

This. Floating point numbers, as they are lossy attempts to discretize continuous data, are more complex and usually non-deterministic. They should never be chosen when a non-lossy representation is available for the problem domain.

[ Parent | on HN ]

Re:How does your programming language handle “minus zero” (-... by OneWingedShark on Friday March 05, 2021 @06:55PM (#26363844)

laughs in Ada

    -- IEEE754/64-bits: Interfaces.IEEE_Float_64
    -- And here we strip out non-numeric values.
    Use Interfaces;
    Subtype Numeric_Real is IEEE_Float_64 range IEEE_Float_64'Range;

Done.

[ Parent | on HN ]