g++ 1.32 can't parse recent C++ syntax

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2 total messages Started by "Douglas C. Schmidt" Tue, 03 Jan 1989 01:36

#1593

Author: "Douglas C. Schmidt"
Date: Tue, 03 Jan 1989 01:36

34 lines
1366 bytes

Hi,

   The following cryptic looking C++ code comes from page 309 of
Stroustrup and Lippman's ``Pointers to Class Members in C++'' article
from the USENIX C++ Conference, 1988.  It fails to compile on g++ 1.32.

Here's the code:
----------------------------------------
class X {
public:
   int i;
   void foo ( int ) {
   }
};

main ( int, char *argv [ ] ) {
   void (X::*pmfXVi2)(int) = &X::foo;
}
----------------------------------------

Here are the diagnostics:

----------------------------------------
In function main (int, char **):
bug.c:10: parse error before `*'
----------------------------------------

Note that if the declaration is moved to the outer scope ( i.e.,
outside of main() ) the compiler handles this correctly ( there seems
to be a general problem correctly parsing with this type of
declaration in both g++ and cfront 1.2.1. ).

Doug

g++ 1.32 can't parse recent C++ syntax

#1618

Author: Michael Tiemann
Date: Mon, 16 Jan 1989 18:57

25 lines
904 bytes

   class X {
   public:
      int i;
      void foo ( int ) {
      }
   };

   main ( int, char *argv [ ] ) {
      void (X::*pmfXVi2)(int) = &X::foo;
   }

GNU C++ cannot handle

	void (*pf)(int);

and it cannot handle

	void (X::*pmf)(int);

for the same reason.  It can handle

	auto void (X::*pmf)(int);

Michael

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