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| author | Andrew Tridgell <tridge@samba.org> | 2010-02-13 13:26:16 +1100 |
|---|---|---|
| committer | Andrew Tridgell <tridge@samba.org> | 2010-02-13 22:36:12 +1100 |
| commit | 46dfa9dfbdd7649cd8a71e9727aff830a58e4d55 (patch) | |
| tree | fe3ff6b6d078730d3dbe13e0e4188fd0ded9d605 /source4/lib/ldb/include | |
| parent | 1da87fc988d0660f9c868ec9350664a3f7f51942 (diff) | |
| download | samba-46dfa9dfbdd7649cd8a71e9727aff830a58e4d55.tar.gz samba-46dfa9dfbdd7649cd8a71e9727aff830a58e4d55.tar.bz2 samba-46dfa9dfbdd7649cd8a71e9727aff830a58e4d55.zip | |
s4-ldb: added LDB_TYPESAFE_QSORT()
Like TYPESAFE_QSORT() but for the ldb_qsort() function
Diffstat (limited to 'source4/lib/ldb/include')
| -rw-r--r-- | source4/lib/ldb/include/ldb.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/source4/lib/ldb/include/ldb.h b/source4/lib/ldb/include/ldb.h index 1958fd740b..26a196f311 100644 --- a/source4/lib/ldb/include/ldb.h +++ b/source4/lib/ldb/include/ldb.h @@ -1985,6 +1985,24 @@ time_t ldb_string_utc_to_time(const char *s); void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp); +#ifndef discard_const +#define discard_const(ptr) ((void *)((uintptr_t)(ptr))) +#endif + +/* + a wrapper around ldb_qsort() that ensures the comparison function is + type safe. This will produce a compilation warning if the types + don't match + */ +#define LDB_TYPESAFE_QSORT(base, numel, opaque, comparison) \ +do { \ + if (numel > 1) { \ + ldb_qsort(base, numel, sizeof((base)[0]), discard_const(opaque), (ldb_qsort_cmp_fn_t)comparison); \ + comparison(&((base)[0]), &((base)[1]), opaque); \ + } \ +} while (0) + + /** Convert an array of string represention of a control into an array of ldb_control structures |