comparison: src/main.h
src/main.h
- changeset 81
- 62373840e33a
- parent 73
- 97df974b5ed5
- child 96
- 165777a20dc7
equal
deleted
inserted
replaced
| 80:764381756899 | 81:62373840e33a |
|---|---|
| 72 using quadrilateralid_t = Id<class Quadrilateral>; | 72 using quadrilateralid_t = Id<class Quadrilateral>; |
| 73 using edgeid_t = Id<class EdgeLine>; | 73 using edgeid_t = Id<class EdgeLine>; |
| 74 using conditionaledgeid_t = Id<class ConditionalEdge>; | 74 using conditionaledgeid_t = Id<class ConditionalEdge>; |
| 75 using subfileid_t = Id<class SubfileReference>; | 75 using subfileid_t = Id<class SubfileReference>; |
| 76 | 76 |
| 77 constexpr struct | 77 constexpr struct NullId |
| 78 { | 78 { |
| 79 template<typename T> | 79 template<typename T> |
| 80 constexpr operator Id<T>() const | 80 constexpr operator Id<T>() const |
| 81 { | 81 { |
| 82 return Id<T>{0}; | 82 return Id<T>{0}; |
| 83 } | 83 } |
| 84 static constexpr decltype(ldraw::id_t::value) value = 0; | |
| 84 } NULL_ID = {}; | 85 } NULL_ID = {}; |
| 85 | 86 |
| 86 template<typename T> | 87 template<typename T> |
| 87 inline bool operator==(Id<T> one, decltype(NULL_ID)) | 88 inline bool operator==(Id<T> one, decltype(NULL_ID)) |
| 88 { | 89 { |
