栈的实现(C语言实现)

//头文件
#include <stdio.h>
/*====================
栈 数据结构
利用数组实现
====================*/
#define MAX 100
#define ok 1
#define error 0
typedef struct Stack
{
	int data[MAX];
	int top;   			//栈顶
	int bottom;			//栈底
}Stack,*STACK;
//初始化栈
int InitStack(STACK stack);
//销毁
int DestroyStack(STACK stack);
//清空
int ClearStack(STACK stack);
//栈空
int StackEmpty(STACK stack);
//获取栈顶元素
int GetTop(STACK stack,int* elem);
//压栈
int Push(STACK stack,int* elem);
//出栈
int Pop(STACK stack,int* elem);
//返回栈中元素长度
int StackLength(STACK stack,int* len);
//打印栈中元素
int PrintStack(STACK stack);
//栈满
int StackFull(STACK stack);

//main函数中实现
#include "stack.h"

int main()
{
	int num=10, num1, i=0,j=0;
	Stack stack;
	int initFlag=InitStack(&stack);
	if(!initFlag)
		return 0;
	for(num1=0;num1<10;num1++)
		Push(&stack,&num1);
/*
	int pushFlag=Push(&stack,&num);
	if(!pushFlag)
		return 0;
*/
//	ClearStack(&stack);
	for(;i<10;i++)
	{
	int flag=Pop(&stack,&num1);
	if(flag)
		printf("%d ",num1);
	else
		printf("Pop error");
	}
	int lenFlag=StackLength(&stack,&num1);
	if(lenFlag)
		printf("len=%d ",num1);
	else
		printf("StackLength error");
/*
	int getFlag=GetTop(&stack,&num1);
	if(getFlag)
		printf("%d ",num1);
*/
	PrintStack(&stack);
	return 0;
}
//初始化栈
int InitStack(STACK stack)
{
	if(stack==NULL)
		return error;
	stack->bottom=stack->top=0;
	return ok;
}
//压栈
int Push(STACK stack,int* elem)
{
	int flag=StackFull(stack);
	if(!flag)
		return error;
	stack->data[stack->top]	=*elem;
	++stack->top;
	return ok;
}
//打印栈中所有元素
int PrintStack(STACK stack)
{
	int i=0;
	int flag=StackEmpty(stack);
	if(!flag)
		return error;
	for(i=0;i<stack->top;i++)
	{
		printf("%d ",stack->data[i]);
	}
	printf("\n");
	return ok;
}
//栈空
int StackEmpty(STACK stack)
{
	if(stack==NULL || stack->top==stack->bottom)
		return error;
	else
		return ok;
}
//出栈
int Pop(STACK stack,int* elem)
{
	int flag=StackEmpty(stack);
	if(!flag)
		return error;

	*elem=stack->data[stack->top-1];
	--stack->top;
	return ok;
}
//栈满
int StackFull(STACK stack)
{
	if(stack==NULL || stack->top>MAX)
		return error;
	else
		return ok;
}
//销毁
int DestroyStack(STACK stack)
{
	if(stack==NULL)
		return ok;
	else
	{
		stack->top=stack->bottom;
		stack=NULL;
		return ok;
	}
}
//清空
int ClearStack(STACK stack)
{
	int flag=StackEmpty(stack);
	if(!flag)
		return error;
	else
	{
		stack->top=stack->bottom;
		return ok;
	}
}
//获取栈顶元素
int GetTop(STACK stack,int* elem)
{
	int flag=StackEmpty(stack);
	if(!flag)
		return error;
	*elem=stack->data[stack->top-1];
	return ok;
}
//返回栈中元素长度
int StackLength(STACK stack,int* len)
{
	if(stack==NULL)
		return error;
	if(stack->top==stack->bottom)
	{
		*len=0;
		return ok;
	}
	else
	{
		*len=stack->top;
		return ok;
	}
}