判断输入的文字花括号是否匹配

#include<iostream>
using namespace std;
int main()
{
  char c;
  int count = 0;
  while ((c = getchar()) != EOF)
  {
    if ('{' == c)
    {
      count++;
    }
    else if ('}' == c&&0!=count)
    {
      count--;
    }
    else if ('}' == c && 0 == count)
    {
      cout << "不匹配" << endl;
    }
  }
  if (count == 0)
  {
    cout << "匹配" << endl;
  }
  else
  {
    cout << "不匹配" << endl;//不要忘记判断不等于0的情况
  }
  system("pause");
}