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#ifndef POSITION_STACK_H
#define POSITION_STACK_H
#include "position.h"
#define STACK_ERR_OVERFLOW 0xFFF01
#define STACK_ERR_UNDERFLOW 0xFFF02
typedef struct PositionStack
{
unsigned int capacity;
int top;
Position *items;
} PositionStack;
PositionStack *pos_stack_create(unsigned int capacity);
void pos_stack_destroy(PositionStack *pos_stack);
void pos_stack_push(PositionStack *pos_stack, Position pos);
Position pos_stack_peek(PositionStack *pos_stack);
Position pos_stack_pop(PositionStack *pos_stack);
#endif
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