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Diffstat (limited to 'src/include/lib/integerset.h')
| -rw-r--r-- | src/include/lib/integerset.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/include/lib/integerset.h b/src/include/lib/integerset.h new file mode 100644 index 0000000..67bf5c5 --- /dev/null +++ b/src/include/lib/integerset.h @@ -0,0 +1,24 @@ +/* + * integerset.h + * In-memory data structure to hold a large set of integers efficiently + * + * Portions Copyright (c) 2012-2020, PostgreSQL Global Development Group + * + * src/include/lib/integerset.h + */ +#ifndef INTEGERSET_H +#define INTEGERSET_H + +typedef struct IntegerSet IntegerSet; + +extern IntegerSet *intset_create(void); +extern void intset_add_member(IntegerSet *intset, uint64 x); +extern bool intset_is_member(IntegerSet *intset, uint64 x); + +extern uint64 intset_num_entries(IntegerSet *intset); +extern uint64 intset_memory_usage(IntegerSet *intset); + +extern void intset_begin_iterate(IntegerSet *intset); +extern bool intset_iterate_next(IntegerSet *intset, uint64 *next); + +#endif /* INTEGERSET_H */ |