42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#ifndef INCLUDED_C_INDEXMAXPQ_H
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#define INCLUDED_C_INDEXMAXPQ_H
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#ifndef INCLUDED_C_BASE_H
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#include <c_Base.h>
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#endif /*INCLUDED_C_BASE_H*/
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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typedef struct {
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void* keys;
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c_size_t element_size;
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c_size_t max_items;
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c_size_t size;
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long long* pq;
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long long* qp;
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int (*compar)(const void*, const void*);
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} c_IndexMaxPQ_t;
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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c_err_t c_IndexMaxPQ_Init(c_IndexMaxPQ_t* pq_inst, c_size_t max_items, c_size_t element_size,
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int (*compar)(const void*, const void*));
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void c_IndexMaxPQ_Destroy(c_IndexMaxPQ_t* pq_inst);
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c_bool_t c_IndexMaxPQ_Contains(c_IndexMaxPQ_t* pq_inst, c_size_t ext_id);
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c_err_t c_IndexMaxPQ_Push(c_IndexMaxPQ_t* pq_inst, c_size_t ext_id, const void* element);
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c_err_t c_IndexMaxPQ_Pop(c_IndexMaxPQ_t* pq_inst, c_size_t* out_ext_id, void* out_element_buffer);
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c_err_t c_IndexMaxPQ_ChangeKey(c_IndexMaxPQ_t* pq_inst, c_size_t ext_id, const void* new_element);
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void* c_IndexMaxPQ_Peek(c_IndexMaxPQ_t* pq_inst, c_size_t* out_ext_id);
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#endif /*INCLUDED_C_INDEXMAXPQ_H*/
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