1106 栈练习

#include<stdio.h>
#include<stdlib.h>
#define MAX 10


struct stack_data
{
int stack[MAX];
int top;
};


typedef struct stack_data Stack;


enum return_result{FULL_OK,FULL_NO,EMPTY_OK,EMPTY_NO,PUSH_OK,PUSH_NO,POP_OK,POP_NO};


void create_stack(Stack **stack)
{
(*stack) = (Stack*)malloc(sizeof(Stack));
if(*stack == NULL)
{
printf("malloc error!\n");
exit(-1);
}
}


void init_stack(Stack **stack)
{
(*stack)->top = -1; 
}
int is_full_stack(Stack **stack)
{
if((*stack)->top == MAX)
{
return FULL_OK;
}
return FULL_NO;
}
int push_stack(Stack **stack,int num)
{
if(is_full_stack(stack) == FULL_OK)
{
printf("stack full!\n");
return PUSH_NO;
}
(*stack)->stack[(*stack)->top++] = num;
return PUSH_OK;


}
int main()
{
Stack *stack;
int i;


create_stack(&stack);


init_stack(&stack);


for (i = 0; i < MAX; i++)
{
if(push_stack(&stack,i+1) == PUSH_OK)
{
printf("push ok!\n");
}
}


    return 0;
}