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#pragma once |
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|
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template<typename C, typename T, T (C::*Member)> |
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struct class_member |
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{ |
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typedef C object_type; |
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typedef T member_type; |
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|
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static member_type const &get (object_type const &v) |
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{ |
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return v.*Member; |
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} |
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}; |
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|
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template<typename C> |
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bool |
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member_cmp (C const &a, C const &b) |
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{ |
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return false; |
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} |
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|
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template<typename Member, typename... Members> |
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bool |
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member_cmp (typename Member::object_type const &a, |
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typename Member::object_type const &b) |
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{ |
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return Member::get (a) != Member::get (b) |
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? Member::get (a) < Member::get (b) |
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: member_cmp<Members...> (a, b) |
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; |
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} |
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|
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#define MEMBER(class, member) class_member<class, decltype (class::member), &class::member> |
