Re: Get rid of inherited enum in partial specialization

From:

mathieu <mathieu.malaterre@gmail.com>

Newsgroups:

comp.lang.c++

Date:

Thu, 31 Jan 2008 04:46:18 -0800 (PST)

Message-ID:

<722bdd1f-6f45-413d-b9e1-e8a2372f771d@i3g2000hsf.googlegroups.com>

On Jan 31, 12:58 pm, Ron Natalie <r...@spamcop.net> wrote:

mathieu wrote:

Hello,

I have the following code:

template<uint16_t Group, uint16_t Element, int TVR, int TVM>
class Attribute
{
public:
enum { VMType = VMToLength<TVM>::Length };
};

template<uint16_t Group, uint16_t Element, int TVR>
class Attribute<Group,Element,TVR,VM::VM1_n>
{
};

what is the best way to get rid of that enum (VMToLength<VM1_n> is not
a valid instantiation) ?

Thanks
-Mathieu

Your question makes no sense. You haven't shown enough of the problem.
There's no inheritance here. What on earth are VM and VMToLength?

And you are very right ! My code was actually:

template<uint16_t Group, uint16_t Element, int TVR =
Default<Group,Element>::ValueTVR , int TVM =
Default<Group,Element>::ValueTVM>
class Attribute { ... };

but because Default<Group,Element>::ValueTVM was expanding to
VM::VM1_n I was expecting the compiler to pick the partially
specialized class :)

Sorry for the noise
-Mathieu