Conflict between template class name and struct field name

[Andy Johnson <andyj at mc dot com>]

If I declare a template class (e.g. template <class T> stack ...) and
then later declare a struct with a field named "stack", I get a syntax
error.  Here is an example of a program that fails:
---
template <class X>
class stack {
  X * val;
  stack * next;
  stack() {}
};

 typedef struct {
  void * val;
  struct {
    int x;
    void * y;
  } stack;    // <<<--- syntax error on this line
  struct {
    int a;
    void * b;
  } heap;
 }foo ;

int main() {
 foo bar;
}
---
I realize that the problem can easily be solved by changing the
field name "stack" to "mystack", but this is already a documented
interface in a C-based API specification.  This only showed up
when a C++ user, who included both <stack> and the C-based
API header got the syntax error.

It would appear that the lexer is transforming the "stack" field specifier
into a typespec, rather than an identifier, even though it should not be
doing so in this particular context.

Is this a known problem, and is there an available patch?  We are
currently using gcc-2.95.2, but this problem exists all the way back
in gcc-2.7.2.

-AndyJ
--
E. Andrew Johnson               Tel: 978-256-0052 x1482
Mercury Computer Systems        Fax: 978-244-0520
199 Riverneck Road              andyj@mc.com
Chelmsford, MA 01824-2820       http://www.ma.ultranet.com/~andyjnsn