[boost] [range] workaround metafunction<const Array> under VC7.1

From: Shunsuke Sogame (mb2act_at_[hidden])
Date: 2006-05-26 13:26:36

Hi,

If you add const-qualification to array type *by hand* when using
metafunctions,
VC7.1 seems to fail to order partial specialized templates.
(VC8 has no problem.)
For trivial example,

    int arr[10];
    boost::begin(arr);

fails under 1.34.0. He can't find partial specialization for array.
I don't know what happens, but the workaround is known.

That is, under VC7.1, please prefer the form

    typename range_metafunction<typename boost::add_const<T>::type>::type

to

    typename range_metafunction<const T>::type

everywhere T can be an array type.

-- 
Shunsuke Sogame