Re: c++/4029: constructor doesn't see base class' members

Re: c++/4029: constructor doesn't see base class' members

[nathan]

Synopsis: constructor doesn't see base class' members

State-Changed-From-To: open->closed
State-Changed-By: nathan
State-Changed-When: Tue Feb 26 14:07:55 2002
State-Changed-Why:
    not a bug. members of a base class cannot be initialized in
    a derrived constructor

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=4029

c++/4029: constructor doesn't see base class' members

[khlebnikov]

>Number:         4029
>Category:       c++
>Synopsis:       constructor doesn't see base class' members
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 15 03:06:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     g++
>Release:        3.0.1pre20010801, 3.0 release, 2.95.4pre20010319
>Organization:
>Environment:
Intel Pentium II 233
Progeny Debian Linux 1.0
Reading specs from /usr/lib/gcc-lib/i386-linux/3.0.1/specs
Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-checking --enable-threads=posix --enable-java-gc=boehm --with-cpp-install-dir=bin --enable-objc-gc i386-linux
Thread model: posix
gcc version 3.0.1 20010801 (Debian prerelease)
>Description:
Constructor does not see base class' member variables
in "var (value)"-style initialization.
>How-To-Repeat:
template <class _TTW>
struct SGBb 
{
	typedef _TTW _TW;
	_TW   sy;
	void* st;
	
	SGBb <_TW> (_TW _sy, void* _st)
		: sy (_sy), st (_st) {}
};

template <class _TW, class _TTWO>
struct SGBMb : public SGBb <_TW> 
{
	typedef _TTWO _TWO;
	_TWO osy;
	
	SGBMb <_TW, _TWO> (_TW _sy, _TWO _osy, void* _st)
		: sy (_sy), osy (_osy), st (_st) {}
};
>Fix:
template <class _TTW>
struct SGBb 
{
	typedef _TTW _TW;
	_TW   sy;
	void* st;
	
	SGBb <_TW> (_TW _sy, void* _st)
		: sy (_sy), st (_st) {}
};

template <class _TW, class _TTWO>
struct SGBMb : public SGBb <_TW> 
{
	typedef _TTWO _TWO;
	_TWO osy;
	
	SGBMb <_TW, _TWO> (_TW _sy, _TWO _osy, void* _st)
		: osy (_osy)
	{
		sy = _sy;
		st = _st;
	}
};
>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Type: text/x-c++src; name="error.cpp"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="error.cpp"

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