高手看看这个程序

#include "stdafx.h"
#include "iostream.h"
#include "stdio.h"
#define STACK_INIT_SIZE 100
#define STACKINCREMENT 10
typedef struct{
    int *elem;
    int top;
    int stacksize;
    int incrementsize;
}SqStack;

void InitStack_Sq(SqStack &S,int maxsize=STACK_INIT_SIZE,int increment=STACKINCREMENT)
{
    S.elem=new int[maxsize];
    S.top=-1;
    S.stacksize=maxsize;
    S.incrementsize=increment;
}

void IncrementStackSize(SqStack &S)
{int i;
int *a;
    a=new int[S.stacksize+S.incrementsize];
for(i=0;i<=S.top;i++)
a[i]=S.elem[i];
delete []S.elem;
S.elem=a;
S.stacksize+=S.incrementsize;
}

void Push_Sq(SqStack &S, char e)
{if(S.top=S.stacksize) IncrementStackSize(S);
S.elem[++S.top]=e;
}

void OverflowMessage(char *s)
{cout<<s<<endl;

}

char GetTop_Sq(SqStack S,char &e)
{if(S.top==-1) OverflowMessage("顺序栈下溢！");
e=S.elem[S.top];
return e;}

char Pop_Sq(SqStack &S,char &e)
{if(S.top==-1) OverflowMessage("顺序栈S下溢！");
e=S.elem[S.top--];
return e;}

bool abab(SqStack S)
{
char ch;
char e;
int state;


    InitStack_Sq(S);
  Push_Sq(S,'#');
  ch=getchar();
  state=1;
  while(ch!='\n'&&state)
  {if(ch=='('||ch=='['||ch=='{')
    Push_Sq(S,ch);
   if(ch==')'||ch==']'||ch=='}')
   {if(GetTop_Sq(S,e)=='#')
     state=0;
     else if(GetTop_Sq(S,e)==ch)
         Pop_Sq(S,e);
     ch=getchar();}
   if(GetTop_Sq(S,e)!='#') state=0;
   if(state) return true;
   else return false;
  }

  


int main(int argc, char* argv[])
{SqStack S;
abab(S);
    return 0;
}

判断输入的大小中括号是否配对的问题。。。。。。。。。我知道我主函数写错了。。我不知道该怎么写