Implement hash map for mj_name2id using djb2 and linear probing.

PiperOrigin-RevId: 499485127 Change-Id: I5aed6549db18b92d7c8a3b7590e50a00ce13a439
2023-01-04 07:57:11 -08:00
parent 5261cceb30
commit f1007df013
11 changed files with 404 additions and 106 deletions
@@ -78,6 +78,9 @@ MJAPI int mj_jacDifPair(const mjModel* m, const mjData* d, int* chain,

 //-------------------------- name functions --------------------------------------------------------

+// get string hash, see http://www.cse.yorku.ca/~oz/hash.html
+uint64_t mj_hashdjb2(const char* s, uint64_t n);
+
 // get id of object with specified name; -1: not found; type is mjtObj
 MJAPI int mj_name2id(const mjModel* m, int type, const char* name);