linux下编程用 编译软件

				enum E { 				  a = 24.2, // { dg-error "constant" }				  b = (int)3.7, 				  c = int(4.2),				  d = (int)(4.2 + 3.7), // { dg-error "constant" }				  e = int(4.2 - 3.7), // { dg-error "constant" }				  f = (int)17.25				};								struct S {				  static const int i = (int)4.2;				  int j[(int)4.2];				  static const int k = static_cast(3.7);				};