指针转换后指向其它类型在 main 函数中

#define STACK_INIT_SIZE 100
#define STACKINCREMENT 10
typedef int SElemType;
typedef struct {
SElemType *base;
SElemType *top;
int stacksize;
}SqStack;
#include<stdio.h>
#include<malloc.h>
void InitStack(SqStack *S)
{S->base=(SElemType *)malloc(STACK_INIT_SIZE *sizeof(SElemType));
if(!S->base) exit(0);
S->top=S->base;
S->stacksize=STACK_INIT_SIZE;

}
void Push(SqStack *S,SElemType e)
{if(S->top-S->base>=S->stacksize)
{S->base=(SElemType *)realloc(S->base,(S->stacksize+STACKINCREMENT)*sizeof(SElemType));
if(!S->base) exit(0);
S->top=S->base+S->stacksize;
S->stacksize+=STACKINCREMENT;}
*S->top=e;
S->top++;
}
void Pop(SqStack *S,SElemType *e)
{*e=*S->top;
S->top--;

}
void main()