Mac OS X 10.4.9 for x86 Source Code gcc 实现源代码

				// { dg-do compile }								// Copyright (C) 2004 Free Software Foundation, Inc.				// Contributed by Nathan Sidwell 30 Nov 2004 								// PR 17431. copy ctor from user conv				// Origin: Volker Reichelt 								struct A {};								struct B : A				{				  B(int);				  B(A);				};								void foo(B);								void bar()				{				  foo(0);				}