sorry, that should have been deleted.. the real code is this..

template <class T> void myFunc(const T&) { typedef boost::operators<T> operatorT; BOOST_STATIC_ASSERT((is_base

_of::value));

...

// bunch of code after... }

On 9/21/07, Nat Goodspeed wrote:

chun ping wang wrote:

...

k lets say i have the following snippet of code

typedef boost::operators<T> operatorsT;

Um, what's the intent of this line? Is there a definition of a specific type T somewhere in scope? Given that myFunc() contains a similar typedef, could this outer one be removed? This set of questions may be a total red herring, but even if the outer typdef doesn't confuse MSVC, it confuses me.

...

template <class T> void myFunc(const T&) { typedef boost::operators<T> operatorT; BOOST_STATIC_ASSERT((is_base_of::value)); // bunch of code after... }

on my compiler it generates this error. [snip]

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on Mon Sep 24 2007, "chun ping wang" wrote:

the problem occurs if i pass a primtive type into T. If i actually have

class X : boost::operators<X> { // ... };

and than using X as a template parameter it works.

However it doesn't seem to accept primitive type because of the following reasons... error C2803: 'operator --' must have at least one formal parameter of class type

operators is not supposed to be used that way. The only right way to use operators<X> is to have X be a class derived from operators<X>. -- Dave Abrahams Boost Consulting http://www.boost-consulting.com The Astoria Seminar ==> http://www.astoriaseminar.com