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[Bug c++/13447] Another demangler problem with method cv-qualifiers
- From: "ian at wasabisystems dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Dec 2003 18:41:19 -0000
- Subject: [Bug c++/13447] Another demangler problem with method cv-qualifiers
- References: <20031219155953.13447.drow@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From ian at wasabisystems dot com 2003-12-19 18:41 -------
Subject: Re: New: Another demangler problem with method cv-qualifiers
Daniel Jacobowitz <drow@mvista.com> writes:
> On Fri, Dec 19, 2003 at 01:28:30PM -0500, Ian Lance Taylor wrote:
> > The mangled name is _ZNK1C1fIiEEPFivEv, which currently demangles as
> >
> > int (*C::f<int>() const)()
> >
> > That more or less corresponds to the declaration. However, I don't
> > know whether this is correct C++.
>
> I believe it's correct C++. At least, it exercises the bits of my
> parser most closely based on the standard, and I parse it exactly as
> above. The CONST_THIS gets attached to the function_arglist used for
> the method itself, not the return type.
What would it mean to attach to CONST_THIS to the return type?
Specifically, this example does not compile:
class C { public: template<typename i> int (*f())() const; };
int foo(const C c) { return (*c.f<int>())(); }
but this one does:
class C { public: template<typename i> int (*f())() const; };
int foo(C c) { return (*c.f<int>())(); }
The only change is that foo's argument is not const.
The mangled name is _ZN1C1fIiEEPFivEv which demangles to
int (*C::f<int>())()
What is the meaning of that trailing const on the first line? What
does it mean to apply a trailing const to a return type?
Ian
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13447