| 1 |
sf-pippijn |
1.1 |
#pragma once |
| 2 |
|
|
|
| 3 |
|
|
template<typename C, typename T, T (C::*Member)> |
| 4 |
|
|
struct class_member |
| 5 |
|
|
{ |
| 6 |
|
|
typedef C object_type; |
| 7 |
|
|
typedef T member_type; |
| 8 |
|
|
|
| 9 |
|
|
static member_type const &get (object_type const &v) |
| 10 |
|
|
{ |
| 11 |
|
|
return v.*Member; |
| 12 |
|
|
} |
| 13 |
|
|
}; |
| 14 |
|
|
|
| 15 |
|
|
template<typename C> |
| 16 |
|
|
bool |
| 17 |
|
|
member_cmp (C const &a, C const &b) |
| 18 |
|
|
{ |
| 19 |
|
|
return false; |
| 20 |
|
|
} |
| 21 |
|
|
|
| 22 |
|
|
template<typename Member, typename... Members> |
| 23 |
|
|
bool |
| 24 |
|
|
member_cmp (typename Member::object_type const &a, |
| 25 |
|
|
typename Member::object_type const &b) |
| 26 |
|
|
{ |
| 27 |
|
|
return Member::get (a) != Member::get (b) |
| 28 |
|
|
? Member::get (a) < Member::get (b) |
| 29 |
|
|
: member_cmp<Members...> (a, b) |
| 30 |
|
|
; |
| 31 |
|
|
} |
| 32 |
|
|
|
| 33 |
|
|
#define MEMBER(class, member) class_member<class, decltype (class::member), &class::member> |
