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-rw-r--r--core/math/pcg.h14
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diff --git a/core/math/pcg.h b/core/math/pcg.h
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+// *Really* minimal PCG32 code / (c) 2014 M.E. O'Neill / pcg-random.org
+// Licensed under Apache License 2.0 (NO WARRANTY, etc. see website)
+
+#ifndef RANDOM_H
+#define RANDOM_H
+
+#include "typedefs.h"
+
+#define PCG_DEFAULT_INC_64 1442695040888963407ULL
+
+typedef struct { uint64_t state; uint64_t inc; } pcg32_random_t;
+uint32_t pcg32_random_r(pcg32_random_t* rng);
+
+#endif // RANDOM_H