用于进行gcc测试

				// Test whether __func__ works for constructors and destructors.								// Copyright (C) 2003 Free Software Foundation, Inc.				// Contributed by Matt Austern , 3 Aug 2003				// { dg-do run }								struct uk9i				{				  uk9i();				  ~uk9i();								  static const char* fname;				  static bool obj_exists;				};								uk9i::uk9i()				{				  obj_exists = true;				  fname = __func__;				}								uk9i::~uk9i()				{				  obj_exists = false;				  fname = __func__;				}								const char* uk9i::fname = 0;				bool uk9i::obj_exists = false;								int main()				{				  bool ok = true;								  ok = ok && uk9i::fname == 0;				  ok = ok && !uk9i::obj_exists;								  {				    uk9i tmp;				    ok = ok && uk9i::obj_exists;				    ok = ok && uk9i::fname != 0;				    if (ok)				      {					ok = ok && uk9i::fname[0] == 'u';					ok = ok && uk9i::fname[1] == 'k';					ok = ok && uk9i::fname[2] == '9';					ok = ok && uk9i::fname[3] == 'i';					ok = ok && uk9i::fname[4] == '\0';				      }				  }								  ok = ok && !uk9i::obj_exists;				  ok = ok && uk9i::fname != 0;				  if (ok)				    {				      ok = ok && uk9i::fname[0] == '~';				      ok = ok && uk9i::fname[1] == 'u';				      ok = ok && uk9i::fname[2] == 'k';				      ok = ok && uk9i::fname[3] == '9';				      ok = ok && uk9i::fname[4] == 'i';				      ok = ok && uk9i::fname[5] == '\0';				    }  								  return ok ? 0 : 1;				}