Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!sun-barr!rutgers!att!ulysses!andante!alice!ark
From: ark@alice.UUCP (Andrew Koenig)
Newsgroups: comp.lang.c++
Subject: Re: cfront 1.2.1 bug?
Keywords: is it a bug, or is it me?  is it fixed in 2.0?
Message-ID: <9347@alice.UUCP>
Date: 11 May 89 14:18:06 GMT
References: <9640@watcgl.waterloo.edu>
Distribution: comp
Organization: AT&T Bell Laboratories, Liberty Corner NJ
Lines: 30

In article <9640@watcgl.waterloo.edu>, al@watsup.waterloo.edu (Al Vermeulen) writes:

> Could someone please explain to me what is wrong with this code?  It seems

	code:
	struct A {
	    A::A( A& )   {}
	};

When you declare a class with a constructor, the compiler
automatically removes the void constructor that you otherwise
get by default.  That is, because you defined A::A(A&),
you must also explicitly define A::A() if you want it.
	
	void func( A )
	{
	}
	
	void func2()
	{
	  A a;

You have declared an A object without an initializer.  This tried
to call A::A(), which doesn't exist.  Hence it's an error.

	  func(a);
	}
-- 
				--Andrew Koenig
				  ark@europa.att.com