linux下编程用 编译软件

				// { dg-do compile }								// Copyright (C) 2003 Free Software Foundation, Inc.				// Contributed by Nathan Sidwell 5 Sep 2003 				// Origin:Wolfgang Bangerth bangerth@dealii.org								// PR c++/12167 - infinite recursion								class A {   				  void report(int d					      // the default arg is what NAN etc can expand to, but					      // with the floatiness removed.					      = (__extension__ ((union { unsigned l; int d; })								{ l: 0x7fc00000U }).d));				};