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author | unknown <jimw@mysql.com> | 2005-07-19 09:15:22 -0700 |
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committer | unknown <jimw@mysql.com> | 2005-07-19 09:15:22 -0700 |
commit | 6ae060305541019882bcb60bf086458b010faa45 (patch) | |
tree | 91161658401493ebad97db85872bd9ccb764fca4 /sql/sql_bitmap.h | |
parent | 1e3be5e98ab82c9ab57e7b6e2ea67d4c2e38f88e (diff) | |
parent | f1d5c0489b03d924750ae7112ffaf34da5d6fe7b (diff) | |
download | mariadb-git-6ae060305541019882bcb60bf086458b010faa45.tar.gz |
Merge mysql.com:/home/jimw/my/mysql-5.0-readline
into mysql.com:/home/jimw/my/mysql-5.0-clean
Diffstat (limited to 'sql/sql_bitmap.h')
-rw-r--r-- | sql/sql_bitmap.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sql/sql_bitmap.h b/sql/sql_bitmap.h index bc1484b4fb0..0f5b6dcd35e 100644 --- a/sql/sql_bitmap.h +++ b/sql/sql_bitmap.h @@ -51,6 +51,14 @@ public: bitmap_init(&map2, (uchar *)&map2buff, sizeof(ulonglong)*8, 0); bitmap_intersect(&map, &map2); } + /* Use highest bit for all bits above sizeof(ulonglong)*8. */ + void intersect_extended(ulonglong map2buff) + { + intersect(map2buff); + if (map.bitmap_size > sizeof(ulonglong)) + bitmap_set_above(&map, sizeof(ulonglong), + test(map2buff & (LL(1) << (sizeof(ulonglong) * 8 - 1)))); + } void subtract(Bitmap& map2) { bitmap_subtract(&map, &map2.map); } void merge(Bitmap& map2) { bitmap_union(&map, &map2.map); } my_bool is_set(uint n) const { return bitmap_is_set(&map, n); } @@ -116,6 +124,7 @@ public: void clear_all() { map=(ulonglong)0; } void intersect(Bitmap<64>& map2) { map&= map2.map; } void intersect(ulonglong map2) { map&= map2; } + void intersect_extended(ulonglong map2) { map&= map2; } void subtract(Bitmap<64>& map2) { map&= ~map2.map; } void merge(Bitmap<64>& map2) { map|= map2.map; } my_bool is_set(uint n) const { return test(map & (((ulonglong)1) << n)); } |