position_counter.h

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#ifndef CHESS_POSITION_COUNTER_H_INCLUDED
#define CHESS_POSITION_COUNTER_H_INCLUDED
 
#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 202311L
  #include <stdbool.h>
#endif
#include <stddef.h>
#include <stdint.h>
 
typedef struct ChessPosition ChessPosition;
 
typedef struct ChessPositionCounterEntry {
  uint64_t key;       
  unsigned int value; 
} ChessPositionCounterEntry;
 
typedef struct ChessPositionCounter {
  ChessPositionCounterEntry *entries; 
  size_t size;                        
  size_t count;                       
} ChessPositionCounter;
 
bool chess_position_counter_is_valid(const ChessPositionCounter *counter);
 
ChessPositionCounter chess_position_counter_new(void);
 
void chess_position_counter_drop(ChessPositionCounter *counter);
 
void chess_position_counter_clear(ChessPositionCounter *counter);
 
unsigned int chess_position_counter_count(const ChessPositionCounter *counter, const ChessPosition *position);
 
bool chess_position_counter_increment(ChessPositionCounter *counter, const ChessPosition *position);
 
bool chess_position_counter_decrement(ChessPositionCounter *counter, const ChessPosition *position);
 
#endif // CHESS_POSITION_COUNTER_H_INCLUDED