Changeset: 8791bd05381d for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/8791bd05381d
Modified Files:
gdk/gdk_strimps.c
Branch: strimps-updates
Log Message:
Small bug + do not include count 0 in hist.
diffs (30 lines):
diff --git a/gdk/gdk_strimps.c b/gdk/gdk_strimps.c
--- a/gdk/gdk_strimps.c
+++ b/gdk/gdk_strimps.c
@@ -236,7 +236,7 @@ STRMPhist_cmp(const void *xx, const void
size_t x = ((PairHistogramElem *)xx)->cnt;
size_t y = ((PairHistogramElem *)yy)->cnt;
- return x - y;
+ return y - x;
}
/*
@@ -250,11 +250,16 @@ STRMPchoosePairs(PairHistogramElem *hist
TRC_DEBUG_IF(ACCELERATOR) t0 = GDKusec();
qsort(hist, hist_size, sizeof(PairHistogramElem), STRMPhist_cmp);
+ for (i = 0; i < hist_size; i++) {
+ if(!hist[i].cnt)
+ break;
+ }
+ hist_size = i;
size_t offset = hist_size/2 - STRIMP_HEADER_SIZE/2;
for (i = 0; i < STRIMP_PAIRS; i++) {
cp[i].pbytes = histindex2bytes(hist[i + offset].idx,
&cp[i].psize);
cp[i].idx = hist[i + offset].idx;
- cp[i].mask = ((uint64_t)0x1) << (STRIMP_PAIRS - i);
+ cp[i].mask = ((uint64_t)0x1) << (STRIMP_PAIRS - 1 - i);
}
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