label2.c

来自「gcc-you can use this code to learn somet」· C语言 代码 · 共 35 行

// Origin: Mark Mitchell <[e-mail]>
// Special g++ Options:

template <class T>
int f ()
{
  int i = 0;
  int j = 0;
  int k = 0;

 l:
  if (j)
    return 0;
  ({
    __label__ l; 
    k = 0;
  l: 
    if (++k <= 2)
      goto l;
    ++i;});
  if (i > 1 || k != 3)
    return 1;
  else
    {
      j = 1;
      goto l;
    }
}

int main ()
{
  return f<double>();
}