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RocksDB for Erlang
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deps/CRoaring/include/roaring/containers/mixed_intersection.h
/*
* mixed_intersection.h
*
*/
#ifndef INCLUDE_CONTAINERS_MIXED_INTERSECTION_H_
#define INCLUDE_CONTAINERS_MIXED_INTERSECTION_H_
/* These functions appear to exclude cases where the
* inputs have the same type and the output is guaranteed
* to have the same type as the inputs. Eg, array intersection
*/
#include <roaring/containers/array.h>
#include <roaring/containers/bitset.h>
#include <roaring/containers/run.h>
#ifdef __cplusplus
extern "C" {
namespace roaring {
namespace internal {
#endif
/* Compute the intersection of src_1 and src_2 and write the result to
* dst. It is allowed for dst to be equal to src_1. We assume that dst is a
* valid container. */
void array_bitset_container_intersection(const array_container_t *src_1,
const bitset_container_t *src_2,
array_container_t *dst);
/* Compute the size of the intersection of src_1 and src_2. */
int array_bitset_container_intersection_cardinality(
const array_container_t *src_1, const bitset_container_t *src_2);
/* Checking whether src_1 and src_2 intersect. */
bool array_bitset_container_intersect(const array_container_t *src_1,
const bitset_container_t *src_2);
/*
* Compute the intersection between src_1 and src_2 and write the result
* to *dst. If the return function is true, the result is a bitset_container_t
* otherwise is a array_container_t. We assume that dst is not pre-allocated. In
* case of failure, *dst will be NULL.
*/
bool bitset_bitset_container_intersection(const bitset_container_t *src_1,
const bitset_container_t *src_2,
container_t **dst);
/* Compute the intersection between src_1 and src_2 and write the result to
* dst. It is allowed for dst to be equal to src_1. We assume that dst is a
* valid container. */
void array_run_container_intersection(const array_container_t *src_1,
const run_container_t *src_2,
array_container_t *dst);
/* Compute the intersection between src_1 and src_2 and write the result to
* *dst. If the result is true then the result is a bitset_container_t
* otherwise is a array_container_t.
* If *dst == src_2, then an in-place intersection is attempted
**/
bool run_bitset_container_intersection(const run_container_t *src_1,
const bitset_container_t *src_2,
container_t **dst);
/* Compute the size of the intersection between src_1 and src_2 . */
int array_run_container_intersection_cardinality(const array_container_t *src_1,
const run_container_t *src_2);
/* Compute the size of the intersection between src_1 and src_2
**/
int run_bitset_container_intersection_cardinality(
const run_container_t *src_1, const bitset_container_t *src_2);
/* Check that src_1 and src_2 intersect. */
bool array_run_container_intersect(const array_container_t *src_1,
const run_container_t *src_2);
/* Check that src_1 and src_2 intersect.
**/
bool run_bitset_container_intersect(const run_container_t *src_1,
const bitset_container_t *src_2);
/*
* Same as bitset_bitset_container_intersection except that if the output is to
* be a
* bitset_container_t, then src_1 is modified and no allocation is made.
* If the output is to be an array_container_t, then caller is responsible
* to free the container.
* In all cases, the result is in *dst.
*/
bool bitset_bitset_container_intersection_inplace(
bitset_container_t *src_1, const bitset_container_t *src_2,
container_t **dst);
#ifdef __cplusplus
}
}
} // extern "C" { namespace roaring { namespace internal {
#endif
#endif /* INCLUDE_CONTAINERS_MIXED_INTERSECTION_H_ */