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The Datafile PD-CD 4
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DATAFILE_PDCD4.iso
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stack
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1992-07-21
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888b
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40 lines
/* > H.Stack - Stack data type header file */
#ifndef __stack_h
#define __stack_h
struct stack
{
void *top; /* pointer to top of stack */
int obj_size; /* size of one element */
};
typedef struct stack *stack;
/* General component routines */
stack stk_new (int obj_len);
void stk_free (stack s);
void stk_clear (stack s);
int stk_copy (stack s1, const stack s2);
int stk_equal (const stack s1, const stack s2);
int stk_empty (const stack s);
int stk_size (const stack s);
/* Iterator */
#define STATUS_CONTINUE 0 /* Continue processing */
#define STATUS_STOP 1 /* Stop processing */
#define STATUS_ERROR (-1) /* Error - terminate */
int stk_iterate (const stack s, int (*process)(void *));
/* Stack-specific routines */
int stk_push (stack s, const void *object);
int stk_pop (stack s);
void *stk_top (const stack s);
#endif