Submitter:CFP group
Submission Date: 2021-01-24
Document: WG14 N2643
Title: N2643: negative
Reference Documents: N2596

Summary: The term 'negative' is ambiguous when talking about zero.

Is -0.0 negative? Is it nonnegative? Is +0.0 positive? We believe that:

However, -0.0 and +0.0 are both nonnegative and nonpositive.

Since C23 now requires just twos complement integers, there are no -0 integers (unlike with sign-magnitude and ones complement).

Since some people interpret 'negative' to include -0.0, we believe that the following changes would make the standard clearer.