#include <stdio.h>
#include <tchar.h>
#include <stdlib.h>
#define StackSize 5
#define IncrementSize 5
// TODO: 在此处引用程序需要的其他头文件
struct Stack
{
int *base;
int *top;
int stacksize;
};
//初始化栈
bool Init_Stack(Stack* s){
s->base = (int*)malloc(StackSize*sizeof(int));
if (s->base == NULL) return false;
s->top = s->base;
s->stacksize = StackSize;
return true;
}
//销毁栈
bool Destroy_Stack(Stack* s){
free(s->base);
s->base = NULL;
s->top = NULL;
s->stacksize = 0;
return true;
}
//清空栈
bool Clear_Stack(Stack* s){
s->top = s->base;
return true;
}
//插入元素
bool Push(Stack* s, int value){
if (s->top - s->base >= s->stacksize){
s->base = (int*)realloc(s->base, (StackSize + IncrementSize)*sizeof(int));
s->top = s->base + s->stacksize;//重置一下栈顶,感觉也没多大必要呀
s->stacksize += IncrementSize;
}
*++s->top = value;//栈顶指向栈顶元素
s->stacksize++;
return true;
}
//弹出元素
int Pop(Stack* s){
if (s->top == s->base) return false;
int p = *s->top--;
s->stacksize--;
return p;
}
//逆序打印
void Print_Stack(Stack s){
if (s.top == s.base) printf("此栈为空\n");
while (s.top!=s.base){
printf("%d->", Pop(&s));
}
printf("\n");
}
//正序打印
void Stack_Traverse(Stack s){
if (s.top == s.base) printf("此栈为空\n");
while (s.top != s.base){
printf("%d->", *++s.base);
}
printf("\n");
}