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| author | Sergei Golubchik <serg@mariadb.org> | 2018-10-30 13:02:59 +0100 |
|---|---|---|
| committer | Sergei Golubchik <serg@mariadb.org> | 2018-10-30 15:10:01 +0100 |
| commit | 44f6f445933e12cbc4cce63e2b7d983b9938d3b9 (patch) | |
| tree | f5230fb24510bb201eb33122a62939ce74588b83 /mysys/ptr_cmp.c | |
| parent | 8772824ce72a811ea92dd5cfb73602eb93237891 (diff) | |
| parent | f4b8b6b9a3ad4ce5e5218e2ec2dfe6dd34112e45 (diff) | |
| download | mariadb-git-44f6f445933e12cbc4cce63e2b7d983b9938d3b9.tar.gz | |
Merge branch '10.0' into 10.1
Diffstat (limited to 'mysys/ptr_cmp.c')
| -rw-r--r-- | mysys/ptr_cmp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mysys/ptr_cmp.c b/mysys/ptr_cmp.c index 6d853a8db25..add92edd713 100644 --- a/mysys/ptr_cmp.c +++ b/mysys/ptr_cmp.c @@ -52,6 +52,11 @@ static int ptr_compare_0(size_t *compare_length, uchar **a, uchar **b); static int ptr_compare_1(size_t *compare_length, uchar **a, uchar **b); static int ptr_compare_2(size_t *compare_length, uchar **a, uchar **b); static int ptr_compare_3(size_t *compare_length, uchar **a, uchar **b); +static int degenerate_compare_func(size_t *compare_length, uchar **a, uchar **b) +{ + DBUG_ASSERT(*compare_length == 0); + return 0; +} #endif /* __sun */ /* Get a pointer to a optimal byte-compare function for a given size */ @@ -64,6 +69,8 @@ qsort2_cmp get_ptr_compare (size_t size __attribute__((unused))) #else qsort2_cmp get_ptr_compare (size_t size) { + if (size == 0) + return (qsort2_cmp) degenerate_compare_func; if (size < 4) return (qsort2_cmp) ptr_compare; switch (size & 3) { |