From: Patrick Hartling (patrick_at_[hidden])
Date: 2003-03-03 14:05:50
The regression tests (version 3) are running, and it may be a while
before they are done. In the meantime, the results of preprocessing the
file give more details of the error:
cc-1108 CC: ERROR File =
/mnt/vracs001/home9/users/patrick/src/Boost/boost-1.30.0-cvs/boost/type_traits/is_base_and_derived.hpp,
Line = 106
The indicated expression must have pointer-to-function type.
static const bool value = sizeof(bd_helper<B,D> ::check(Host(),
0)) == sizeof(type_traits::yes_type);
^
The code in question comes from the following:
template <typename B, typename D>
struct bd_helper
{
template <typename T>
static type_traits::yes_type check(D const volatile *, T);
static type_traits::no_type check(B const volatile *, int);
};
template<typename B, typename D>
struct is_base_and_derived_impl2
{
struct Host
{
operator B const volatile *() const;
operator D const volatile *();
};
static const bool value = sizeof(bd_helper<B,D> ::check(Host(), 0))
== sizeof(type_traits::yes_type);
};
This looks okay to me (though I am not familiar with the Boost
internals), but I think I have seen a similar error with this compiler.
A cast might have been necessary to coerce the compiler into dealing with
the code, but I'm guessing that is not appropriate in this case.
-Patrick
David Abrahams wrote:
> Patrick Hartling <patrick_at_[hidden]> writes:
>
>
>>Is there a recommended procedure I can follow for tracking this down
>>and submitting a patch?
>
>
> I would start by preprocessing the file to see what's going on behind
> that macro, then tweaking it until it works.
>
>
>>For example, I was considering running the regression tests for the
>>MIPSpro Compilers. Would that be helpful,
>
>
> Very much so
>
>
>> or is someone on the Boost team on top of this already?
>
>
> Not that I know of.
>
-- Patrick L. Hartling | Research Assistant, VRAC patrick_at_[hidden] | 2624 Howe Hall: 1.515.294.4916 http://www.137.org/patrick/ | http://www.vrac.iastate.edu/