/* * mixed_negation.h * */ #ifndef INCLUDE_CONTAINERS_MIXED_NEGATION_H_ #define INCLUDE_CONTAINERS_MIXED_NEGATION_H_ #include #include #include #ifdef __cplusplus extern "C" { namespace roaring { namespace internal { #endif /* Negation across the entire range of the container. * Compute the negation of src and write the result * to *dst. The complement of a * sufficiently sparse set will always be dense and a hence a bitmap * We assume that dst is pre-allocated and a valid bitset container * There can be no in-place version. */ void array_container_negation(const array_container_t *src, bitset_container_t *dst); /* Negation across the entire range of the container * Compute the negation of src and write the result * to *dst. A true return value indicates a bitset result, * otherwise the result is an array container. * We assume that dst is not pre-allocated. In * case of failure, *dst will be NULL. */ bool bitset_container_negation(const bitset_container_t *src, container_t **dst); /* inplace version */ /* * Same as bitset_container_negation except that if the output is to * be a * bitset_container_t, then src 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_container_negation_inplace(bitset_container_t *src, container_t **dst); /* Negation across the entire range of container * Compute the negation of src and write the result * to *dst. * Return values are the *_TYPECODES as defined * in containers.h * We assume that dst is not pre-allocated. In * case of failure, *dst will be NULL. */ int run_container_negation(const run_container_t *src, container_t **dst); /* * Same as run_container_negation except that if the output is to * be a * run_container_t, and has the capacity to hold the result, * then src is modified and no allocation is made. * In all cases, the result is in *dst. */ int run_container_negation_inplace(run_container_t *src, container_t **dst); /* Negation across a range of the container. * Compute the negation of src and write the result * to *dst. Returns true if the result is a bitset container * and false for an array container. *dst is not preallocated. */ bool array_container_negation_range(const array_container_t *src, const int range_start, const int range_end, container_t **dst); /* Even when the result would fit, it is unclear how to make an * inplace version without inefficient copying. Thus this routine * may be a wrapper for the non-in-place version */ bool array_container_negation_range_inplace(array_container_t *src, const int range_start, const int range_end, container_t **dst); /* Negation across a range of the container * Compute the negation of src and write the result * to *dst. A true return value indicates a bitset result, * otherwise the result is an array container. * We assume that dst is not pre-allocated. In * case of failure, *dst will be NULL. */ bool bitset_container_negation_range(const bitset_container_t *src, const int range_start, const int range_end, container_t **dst); /* inplace version */ /* * Same as bitset_container_negation except that if the output is to * be a * bitset_container_t, then src 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_container_negation_range_inplace(bitset_container_t *src, const int range_start, const int range_end, container_t **dst); /* Negation across a range of container * Compute the negation of src and write the result * to *dst. Return values are the *_TYPECODES as defined * in containers.h * We assume that dst is not pre-allocated. In * case of failure, *dst will be NULL. */ int run_container_negation_range(const run_container_t *src, const int range_start, const int range_end, container_t **dst); /* * Same as run_container_negation except that if the output is to * be a * run_container_t, and has the capacity to hold the result, * then src is modified and no allocation is made. * In all cases, the result is in *dst. */ int run_container_negation_range_inplace(run_container_t *src, const int range_start, const int range_end, container_t **dst); #ifdef __cplusplus } } } // extern "C" { namespace roaring { namespace internal { #endif #endif /* INCLUDE_CONTAINERS_MIXED_NEGATION_H_ */