c语言 函数的定义和调用有点问题，求助

Question

#include
typedef int Status;
typedef int ElemType;
#define Maxsize 20
#define OK 1
#define ERROR 0

typedef struct
{ElemType elem[Maxsize];
int top;
}SqStack;
Status lnitStack(SqStack *S);
Status Push(SqStack *S,ElemType e);
Status Pop(SqStack *S,ElemType *e);
Status GetTop( SqStack S, ElemType *e);
int StackEmpty( SqStack S );
Status zhuanhuan(int x, int n);

Status lnitStack(SqStack *S)
{ S->top=-1;
}

Status Push(SqStack *S,ElemType e)
{if(S->top>=Maxsize-1)
return ERROR;
else{
S->top++;
S->elem[S->top]=e;
return OK;}
}

Status Pop(SqStack *S,ElemType *e)
{
if(S->top==-1)
return ERROR;
*e=S->elem[S->top];
S->top--;
return OK;
}

Status GetTop( SqStack S, ElemType *e)

{
if( S.top == S.base )
return ERROR;

*e = *( S.top – 1 );
return OK;
}

int StackEmpty( SqStack S )
{
if(S.top == S.base)
return 1;
else
return 0;
}

Status zhuanhuan(int x, int y)
{ SqStack S;
int e;
InitStack(&S);
printf("\n\n\t\t未转换的十进制数为：%d\n",x);
while(x)
{ Push(&S,x%n);
x=x/y;
}
printf("\n\t\t转换后的的%d进制数为：",n);
while(!StackEmpty(S))
{ Pop(&S,&e);
printf("%d",e);
}
printf("\n\n");
return OK;
}

int main()
{SqStack S;
int n,e,x,y;
printf("------------\n");
printf("--1.初始化栈--\n");
printf("--2.压栈--\n");
printf("--3.弹栈----\n");
printf("--4.取栈顶元素----\n");
printf("--5.判栈空\n");
printf("--6.十进制数转换成N进制数\n");
printf("--7.退出----\n");
while(1)
{ printf("请选择功能");
scanf("%d",&n);
switch(n)
{

case 1:lnitStack(S);break;
case 2:scanf("%d",&e);Push(S,e);break;
case 3:Pop(S,e);printf("%d\n",e);break;
case 4:GetTop(S,e);printf("%d\n",e);break;
case 5:if(StackEmpty(S))
{
printf("此为空\n");
}
else
printf("此不为空\n");break;
case 6:printf("请输入要转换的十进制数");scanf("%d",&x);
printf("请输入想要的进制数");scanf("%d",&y);
zhuanhuan(x,y);break;
case 7:break;
}

Answer 1

typedef struct
{ElemType elem[Maxsize];
int top;
}SqStack;
这个里面没有base
Status GetTop( SqStack S, ElemType *e)

{
if( S.top == S.base )
return ERROR;

*e = *( S.top – 1 );
return OK;
}
这里的S.base哪里来的？

感觉你的程序是两个程序拼凑的