Path: utzoo!attcan!uunet!mcsun!hp4nl!sci.kun.nl!atcmpe!leo
From: leo@atcmp.nl (Leo  Willems)
Newsgroups: comp.lang.c++
Subject: explicit virtual destructor call
Keywords: destructor virtual
Message-ID: <667@atcmpe.atcmp.nl>
Date: 4 Oct 90 11:21:37 GMT
Organization: AT Computing, Nijmegen, The Netherlands
Lines: 30


In par. 12.4 (last part) of E&S the difference between a virtual/static
destructor call is clearified.
The virtual call syntax is not accepted by all C++ compilers I have access to,
the most current version is Comeau's 2.1 port for the 3b2/600.


class X {
public:
	X(){ cout << "X::X()\n"; }
	virtual ~X(){ cout << "X::~X()\n"; }
};

void h(X& a)
{
	a.~X();		// virtual..... but generates syntax error.

	a.X::~X();	// static...... compiles, and behaves virtual!!
}


Should this program compile? If so are there already compilers that do?

Thanks 

Leo


BTW, what is the meaning of the 'extern gg(X&)' in the E&S example,
it's not a simple typo (s/gg/h/) because the returntypes are different?