On 9/10/21 4:26 AM, Luis Pires wrote:
Introduce uabs64(), a function that returns the absolute value of a 64-bit int as an unsigned value. This avoids the undefined behavior for common abs implementations, where abs of the most negative value is undefined.
I do question the comment there wrt undefined. We compile with -fwrapv, which means that *no* overflow is undefined; we always have properly truncated twos-compliment values.
r~
