c++/7674: unjustified syntax error when a class contains a reference AND a pointer to member

[ulrich dot lauther at mchp dot siemens dot de]

>Number:         7674
>Category:       c++
>Synopsis:       unjustified syntax error when a class contains a reference AND a pointer to member
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 21 02:06:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Ulrich Lauther
>Release:        Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.2/specs Configured with: /usr/local/src/gcc-3.2/configure --enable-languages=c,c++ Thread model: posix gcc version 3.2
>Organization:
>Environment:
Linux i686, kernel 2.4.5
>Description:
The code attached compiled with g++ bug.C gives:
bug.C: In function `int main()':
bug.C:23: uninitialized const member `components::m_g'


 
>How-To-Repeat:
g++ bug.C

Where bug.C contains:

class hgraph_base {
  public:
  int foo;
};

class Hnode;


class components {

  hgraph_base& m_g;
  int Hnode::* m_node_nr;

public:
  inline components(hgraph_base& pg) : m_g (pg) {
  }
};

int main () {
  
  hgraph_base base;
  
  components bi(base);
  
  return 0;
}
>Fix:
change hgraph_base& into hgraph_base* (and adapt the rest of the program) or comment out the line 
int Hnode::* m_node_nr;
(this is - of course - not really a fix, but might hint at the problem)
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="bug.C"
Content-Disposition: inline; filename="bug.C"

class hgraph_base {
  public:
    int foo;
};

class Hnode;


class components {

  hgraph_base&                m_g;
  int Hnode::*                m_node_nr;

public:
  inline components(hgraph_base& pg) : m_g (pg) {
  }
};

int main () {
  
  hgraph_base base;
  
  components bi(base);
  
  return 0;
}