Re: [Boost-users] Question about boost::bind2nd

From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-08-09 08:27:20

Jan Ohlenburg wrote:
> Hi everybody,
> I would like to bind a member function within the template function
> using the template argument. Please have a look at the following code:
>
> template<typename T> void Object::setField(FieldId fieldId, const T&
> fieldData)
> {
>  // call for_each with setFieldImpl ...
>  shadowCopies->for_each ( boost::bind2nd(
> boost::mem_fun(&Object::setFieldImpl<T>), fieldId, fieldData)));
> }
>
> template<typename T> void Object::setFieldImpl(FieldId fieldId, const
> T& fieldData)
> {
>  ... do some stuff...
> }

bind2nd is soo last century... have you tried using boost::bind?

    boost::bind( &Object::setFieldImpl<T>, fieldId, fieldData )

It is not guaranteed to work (MSVC 6 in particular might not be able to 
handle it), but it stands a better chance.

If that fails, you'd probably need to use

    void (Object::*pmf)(FieldId, const T&) = &Object::setFieldImpl;

    ... boost::bind( pmf, fieldId, fieldData ) ...