[Octave-bug-tracker] [bug #37882] printf('%4d', -0) prints 0

[Rik]

Update of bug #37882 (project octave):

                  Status:                    None => Need Info              

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Follow-up Comment #2:

I think this is actually the expected behavior.

The IEEE floating point standard store numbers in a format with a signbit,
mantissa, and exponent.  It is therefore possible to have a mantissa of 0 and
the signbit either set or unset which leads to -/+ 0.

When you call 'printf ("%4d", -0)' you are asking the printf routine to
convert a floating point number to an integer format.  The integers are stored
using two's complement format and there is only a single possible zero for the
integers which is +0.

If you agree that this is correct I will close this bug.

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