/*------------------------------------------------------------------------------
  stack.h - Declaration of an expansion data stack
------------------------------------------------------------------------------*/
#ifndef expansion_stack_h
#define expansion_stack_h

#include "expansion_data.h"

typedef struct expansion_stack {
  int             capacity;
  int             top;
  expansion_data *data[];
} expansion_stack;

void             delete_stack (expansion_stack *stack);
int              is_empty (expansion_stack *stack);
expansion_stack *new_stack ();
void             pop  (expansion_stack **stack);
int              push (expansion_stack **stack, expansion_data *data);

#endif // ! expansion_stack_h