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rocksdb deps CRoaring include roaring containers convert.h
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deps/CRoaring/include/roaring/containers/convert.h 

/*

 * convert.h

 *

 */



#ifndef INCLUDE_CONTAINERS_CONVERT_H_

#define INCLUDE_CONTAINERS_CONVERT_H_



#include <roaring/containers/array.h>

#include <roaring/containers/bitset.h>

#include <roaring/containers/run.h>



#ifdef __cplusplus

extern "C" {

namespace roaring {

namespace internal {

#endif



/* Convert an array into a bitset. The input container is not freed or modified.

 */

bitset_container_t *bitset_container_from_array(const array_container_t *arr);



/* Convert a run into a bitset. The input container is not freed or modified. */

bitset_container_t *bitset_container_from_run(const run_container_t *arr);



/* Convert a run into an array. The input container is not freed or modified. */

array_container_t *array_container_from_run(const run_container_t *arr);



/* Convert a bitset into an array. The input container is not freed or modified.

 */

array_container_t *array_container_from_bitset(const bitset_container_t *bits);



/* Convert an array into a run. The input container is not freed or modified.

 */

run_container_t *run_container_from_array(const array_container_t *c);



/* convert a run into either an array or a bitset

 * might free the container. This does not free the input run container. */

container_t *convert_to_bitset_or_array_container(run_container_t *rc,

                                                  int32_t card,

                                                  uint8_t *resulttype);



/* convert containers to and from runcontainers, as is most space efficient.

 * The container might be freed. */

container_t *convert_run_optimize(container_t *c, uint8_t typecode_original,

                                  uint8_t *typecode_after);



/* converts a run container to either an array or a bitset, IF it saves space.

 */

/* If a conversion occurs, the caller is responsible to free the original

 * container and

 * he becomes reponsible to free the new one. */

container_t *convert_run_to_efficient_container(run_container_t *c,

                                                uint8_t *typecode_after);



// like convert_run_to_efficient_container but frees the old result if needed

container_t *convert_run_to_efficient_container_and_free(

    run_container_t *c, uint8_t *typecode_after);



/**

 * Create new container which is a union of run container and

 * range [min, max]. Caller is responsible for freeing run container.

 */

container_t *container_from_run_range(const run_container_t *run, uint32_t min,

                                      uint32_t max, uint8_t *typecode_after);



#ifdef __cplusplus

}

}

}  // extern "C" { namespace roaring { namespace internal {

#endif



#endif /* INCLUDE_CONTAINERS_CONVERT_H_ */