Re: [Boost-users] Template operator() overloading for types in a mpl::vector

2 Nov 2009

      AMDG

Olivier Tournaire wrote:
...
2009/11/2 Steven Watanabe <watanabesj@gmail.com>
...
You can define two overloads of operator() and use enable_if to
distinguish them.
I thought about this solution but did not know how to implement it. Could
you please provide a small sample?
typedef ... grey_image_types;
typedef ... rgb_image_types;

struct any_view_min_max {
    typedef ... result_type;
    template<class View>
    typename boost::enable_if<
        boost::mpl::contains<grey_image_types, View>,
    result_type>::type operator()(const View&);
    template<class View>
    typename boost::enable_if<
        boost::mpl::contains<rgb_image_types, View>,
    result_type>::type operator()(const View&);
};

In Christ,
Steven Watanabe