linux下编程用 编译软件

				// { dg-do compile }				// Tests if case ranges (a GNU extension) are accepted				// { dg-options "" }				const int low = -2;				const int high = 15;								template 				T f2 (T i)				{				  switch (i)				  {				    case low ... high : return i + 1;				    default : return 0;				  }				}								int f (int i)				{				  switch (i) {				    case 1 ... 10: return i + 1;				    default: return f2 (i);				  }				}