顺序栈的入栈出栈

#include<stdio.h>
#define Stack_Init_size 20
#define StackIncrement 10
typedef struct {
	int data[Stack_Init_size];
	int top;//栈顶指针
	int length;
}Sqstack;

void Init_satck(Sqstack &stack) {
	stack.top = -1;
	stack.length = 0;
}

bool StackEmpty(Sqstack& stack) {
	if (stack.top==-1) {
		return true;
	}
	return false;
}



void pop(Sqstack& stack,int &data) {//栈顶元素出栈
	if (StackEmpty(stack)) {
		printf("error\n");
		return;
	}
	data = stack.data[stack.top];
	stack.top--;
	stack.length--;
}

bool StackFull(Sqstack& stack) {
	if (stack.top== Stack_Init_size-1) {
		return true;
	}
	return false;
}

void push(Sqstack& stack, int data) {//顺序栈中，栈顶指针top指向栈顶元素，而不是栈顶元素的下一个位置
	if (StackFull(stack)) {
		return;
	}
	stack.top++;
	stack.data[stack.top] = data;
	stack.length++;
}
void print(Sqstack& stack){
	for (int i = stack.top; i >= 0;i--) {
		printf("第%d个元素是%d\n",i,stack.data[i]);
	}
	printf("----------------------------------\n");
}
int main() {
	Sqstack stack;
	Init_satck(stack);
	for (int i = 0; i <= 9;i++) {
		push(stack,i);
	}
	print(stack);
	for (int i = stack.length - 1; i > 3;i--) {
		int b;
		pop(stack,b);
		printf("%d\n",b);
	}
}