Greg 'groggy' Lehey wrote: > On Sunday, 20 November 2005 at 0:50:30 +0000, Colin Percival wrote: >> Log: >> An empty file does not have a positive number of lines. > > Yes it does. It's 0, not -0.
As a mathematician, I must insist that 0 = -0 and is neither positive nor negative. :-) >> Make sure that the number of lines read is non-zero before in >> order to avoid dumping core. > > This is a different (and presumably correct) test. The correct test is actually to verify that the number of lines is positive, but while we cannot assume this (as I originally did), we can assume that the number of lines is non-negative (and all non-negative non-zero values are positive). Colin Percival _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
