Changeset 3621 in MondoRescue for branches/3.3/mindi-busybox/shell/random.h

Timestamp:

Dec 20, 2016, 4:07:32 PM (7 years ago)

Author:

Bruno Cornec

Message:

New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.

Location:

branches/3.3

Files:

• . (copied) (copied from branches/3.2 )
• mindi-busybox/shell/random.h (modified) (2 diffs)

branches/3.3/mindi-busybox/shell/random.h

@@ -13 +13 @@
 
 typedef struct random_t {
-    /* Random number generators */
-    int32_t galois_LFSR; /* Galois LFSR (fast but weak). signed! */
-    uint32_t LCG;        /* LCG (fast but weak) */
+    /* State of random number generators: */
+
+    /* Galois LFSR (fast but weak) */
+    int32_t galois_LFSR; /* must be signed! */
+
+    /* LCG (fast but weak) */
+    uint32_t LCG;
+
+    /* 64-bit xorshift (fast, moderate strength) */
+    uint32_t xs64_x;
+    uint32_t xs64_y;
 } random_t;
 
@@ -22 +30 @@
 
 #define INIT_RANDOM_T(rnd, nonzero, v) \
-    ((rnd)->galois_LFSR = (nonzero), (rnd)->LCG = (v))
+    ((rnd)->galois_LFSR = (rnd)->xs64_x = (nonzero), (rnd)->LCG = (rnd)->xs64_y = (v))
 
 #define CLEAR_RANDOM_T(rnd) \