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-rw-r--r--src/common/utils.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/common/utils.h b/src/common/utils.h
index 794a0b6..0b006c3 100644
--- a/src/common/utils.h
+++ b/src/common/utils.h
@@ -1,3 +1,4 @@
+#include "mt_rand.h"
#ifndef NULL
#define NULL (void *)0
@@ -33,10 +34,9 @@
/*
* ModuloRand and ModuloPlusRand. These macros are used to replace the
- * vast number of calls to rand()%mod which is low-order bits. These
- * instead use the high-order bits as suggested in the man page of rand().
+ * vast number of calls to rand()%mod ..
* MRAND(10), returns 0-9.
* MPRAND(5,10) returns 5-14.
*/
-#define MRAND(mod) (int) ((float)mod * (rand() / (RAND_MAX + 1.0)))
+#define MRAND(mod) (int) (mt_random() % mod)
#define MPRAND(add, mod) add + MRAND(mod)