Extract splitmix64 PRNG

2026-09-16 00:10:18 +01:00
parent 9226891bb9
commit f46c3ab38a
6 changed files with 129 additions and 85 deletions
@@ -0,0 +1,18 @@
+// vim:fileencoding=utf-8:foldmethod=marker
+
+#ifndef SPLITMIX64_H
+#define SPLITMIX64_H
+
+#include "../../common/aliases/aliases.h"
+
+typedef struct WpSplitmix64State {
+	u64 seed;
+} WpSplitmix64State;
+
+WpSplitmix64State wpPrngSplitmix64Init(void);
+WpSplitmix64State wpPrngSplitmix64InitWithSeed(u64 seed);
+u64               wpPrngSplitmix64(WpSplitmix64State *state);
+u64               wpPrngSplitmix64InRange(WpSplitmix64State *state, u64 start, u64 end);
+u64               wpPrngSplitmix64Choice(WpSplitmix64State *state, u64 available_choices);
+
+#endif // !SPLITMIX64_H