Changeset: 0e3f41c43987 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/0e3f41c43987
Modified Files:
gdk/gdk_rsort.c
Branch: default
Log Message:
Change declaration of variable.
It's now a pointer to an array of NBUCKETS size_t values.
diffs (69 lines):
diff --git a/gdk/gdk_rsort.c b/gdk/gdk_rsort.c
--- a/gdk/gdk_rsort.c
+++ b/gdk/gdk_rsort.c
@@ -20,7 +20,7 @@
gdk_return
GDKrsort(void *restrict h, void *restrict t, size_t n, size_t hs, size_t ts,
bool reverse, bool isuuid)
{
- size_t *counts = GDKmalloc(hs * NBUCKETS * sizeof(size_t));
+ size_t (*counts)[NBUCKETS] = GDKmalloc(hs * sizeof(counts[0]));
size_t pos[NBUCKETS];
uint8_t *h1 = h;
uint8_t *h2;
@@ -57,24 +57,25 @@ GDKrsort(void *restrict h, void *restric
ts = 0;
}
- memset(counts, 0, hs * NBUCKETS * sizeof(size_t));
+ memset(counts, 0, hs * sizeof(counts[0]));
#ifndef WORDS_BIGENDIAN
- if (isuuid /* UUID, treat like big-endian */)
+ if (isuuid /* UUID, treat like big-endian */) {
#endif
for (size_t i = 0, o = 0; i < n; i++, o += hs) {
for (size_t j = 0, k = hs - 1; j < hs; j++, k--) {
uint8_t v = h1[o + k];
- counts[(j << RADIX) + v]++;
+ counts[j][v]++;
}
}
#ifndef WORDS_BIGENDIAN
- else
+ } else {
for (size_t i = 0, o = 0; i < n; i++, o += hs) {
for (size_t j = 0; j < hs; j++) {
uint8_t v = h1[o + j];
- counts[(j << RADIX) + v]++;
+ counts[j][v]++;
}
}
+ }
#endif
/* When sorting in ascending order, the negative numbers occupy
* the second half of the buckets in the last iteration; when
@@ -82,19 +83,19 @@ GDKrsort(void *restrict h, void *restric
* first half. In either case, at the end we need to put the
* second half first and the first half after. */
size_t negpos = 0;
- for (size_t j = 0, b = 0, k = hs - 1; j < hs; j++, b += NBUCKETS, k--) {
- size_t nb = counts[b] > 0;
+ for (size_t j = 0, k = hs - 1; j < hs; j++, k--) {
+ size_t nb = counts[j][0] > 0;
if (reverse) {
pos[NBUCKETS - 1] = 0;
for (size_t i = NBUCKETS - 1; i > 0; i--) {
- pos[i - 1] = pos[i] + counts[b + i];
- nb += counts[b + i] > 0;
+ pos[i - 1] = pos[i] + counts[j][i];
+ nb += counts[j][i] > 0;
}
} else {
pos[0] = 0;
for (size_t i = 1; i < NBUCKETS; i++) {
- pos[i] = pos[i - 1] + counts[b + i - 1];
- nb += counts[b + i] > 0;
+ pos[i] = pos[i - 1] + counts[j][i - 1];
+ nb += counts[j][i] > 0;
}
}
/* we're only interested in the position in the last
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