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| author | Richard Try <bazrovstepan@gmail.com> | 2022-05-10 20:26:24 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-10 19:26:24 +0200 |
| commit | 6928c7eb6f00a00df4efcf1a1ec8f2310609696b (patch) | |
| tree | 18e265d0921511b2ab542f37dc217573008e5b9c /include/vector3d.h | |
| parent | 372b3642bf524da2694cc09bdc8bdacb23f5fd0e (diff) | |
| download | irrlicht-6928c7eb6f00a00df4efcf1a1ec8f2310609696b.tar.xz | |
Add hash for vector2d and vector3d (#93)
Diffstat (limited to 'include/vector3d.h')
| -rw-r--r-- | include/vector3d.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/vector3d.h b/include/vector3d.h index 4dbc53b..ed910e9 100644 --- a/include/vector3d.h +++ b/include/vector3d.h @@ -7,6 +7,8 @@ #include "irrMath.h"
+#include <functional>
+
namespace irr
{
namespace core
@@ -466,5 +468,22 @@ namespace core } // end namespace core
} // end namespace irr
+namespace std
+{
+
+template<class T>
+struct hash<irr::core::vector3d<T> >
+{
+ size_t operator()(const irr::core::vector3d<T>& vec) const
+ {
+ size_t h1 = hash<T>()(vec.X);
+ size_t h2 = hash<T>()(vec.Y);
+ size_t h3 = hash<T>()(vec.Z);
+ return (h1 << (5 * sizeof(h1)) | h1 >> (3 * sizeof(h1))) ^ (h2 << (2 * sizeof(h2)) | h2 >> (6 * sizeof(h2))) ^ h3;
+ }
+};
+
+}
+
#endif
|