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Fix comments for correctness in zunionInterGenericCommand().

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Related to issue #1240.
This commit is contained in:
antirez
2013-08-16 15:31:25 +02:00
parent bf3932ed9f
commit d9bf918d5b
1 changed files with 5 additions and 3 deletions
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8
src/t_zset.c
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@ -1620,7 +1620,7 @@ void zunionInterGenericCommand(redisClient *c, robj *dstkey, int op) {
while (zuiNext(&src[i],&zval)) {
double score, value;
/* Skip key when already processed */
/* Skip an element that when already processed */
if (dictFind(dstzset->dict,zuiObjectFromValue(&zval)) != NULL)
continue;
@ -1628,8 +1628,10 @@ void zunionInterGenericCommand(redisClient *c, robj *dstkey, int op) {
score = src[i].weight * zval.score;
if (isnan(score)) score = 0;
/* Because the inputs are sorted by size, it's only possible
* for sets at larger indices to hold this element. */
/* We need to check only next sets to see if this element
* exists, since we process every element just one time so
* it can't exist in a previous set (otherwise it would be
* already processed). */
for (j = (i+1); j < setnum; j++) {
/* It is not safe to access the zset we are
* iterating, so explicitly check for equal object. */