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/osnet-11/usr/src/cmd/perl/5.8.4/distrib/
H A Dpp_sort.c113 /* PTHRESH is the minimum number of pairs with the same sense to justify
114 ** checking for a run and extending it. Note that PTHRESH counts PAIRS,
115 ** not just elements, so PTHRESH == 8 means a run of 16.
118 #define PTHRESH (8) macro
134 ** or runs of length >= 2 * PTHRESH. We only try to form long runs when
135 ** PTHRESH adjacent pairs compare in the same way, suggesting overall order.
172 ** b through q is a run (of length >= 2 * PTHRESH)
202 p = r = b + (2 * PTHRESH);

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