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ruanhaishen
redis
Commits
a4b90be9
Commit
a4b90be9
authored
Mar 15, 2019
by
antirez
Browse files
HyperLogLog: enlarge reghisto variable for safety.
parent
42086667
Changes
1
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src/hyperloglog.c
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a4b90be9
...
...
@@ -1017,7 +1017,12 @@ uint64_t hllCount(struct hllhdr *hdr, int *invalid) {
double
m
=
HLL_REGISTERS
;
double
E
;
int
j
;
int
reghisto
[
HLL_Q
+
2
]
=
{
0
};
/* Note that reghisto could be just HLL_Q+1, becuase this is the
* maximum frequency of the "000...1" sequence the hash function is
* able to return. However it is slow to check for sanity of the
* input: instead we history array at a safe size: overflows will
* just write data to wrong, but correctly allocated, places. */
int
reghisto
[
64
]
=
{
0
};
/* Compute register histogram */
if
(
hdr
->
encoding
==
HLL_DENSE
)
{
...
...
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