From 4d2fefd75a57dfd6e60680eaf7408c82e15a025d Mon Sep 17 00:00:00 2001
From: AlexeyAB <alexeyab84@gmail.com>
Date: Thu, 17 Aug 2017 23:12:44 +0000
Subject: [PATCH] More usage rand_s()
---
src/utils.c | 34 ++++++++++++++++++++++++++++++++--
1 files changed, 32 insertions(+), 2 deletions(-)
diff --git a/src/utils.c b/src/utils.c
index ec4f8ac..05ad885 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -607,12 +607,13 @@
max = swap;
}
return ((float)rand()/RAND_MAX * (max - min)) + min;
+ //return (random_float() * (max - min)) + min;
}
float rand_scale(float s)
{
- float scale = rand_uniform(1, s);
- if(rand()%2) return scale;
+ float scale = rand_uniform_strong(1, s);
+ if(random_gen()%2) return scale;
return 1./scale;
}
@@ -628,3 +629,32 @@
return t;
}
+unsigned int random_gen()
+{
+ unsigned int rnd = 0;
+#ifdef WIN32
+ rand_s(&rnd);
+#else
+ rnd = rand();
+#endif
+ return rnd;
+}
+
+float random_float()
+{
+#ifdef WIN32
+ return ((float)random_gen() / (float)UINT_MAX);
+#else
+ return ((float)random_gen() / (float)RAND_MAX);
+#endif
+}
+
+float rand_uniform_strong(float min, float max)
+{
+ if (max < min) {
+ float swap = min;
+ min = max;
+ max = swap;
+ }
+ return (random_float() * (max - min)) + min;
+}
\ No newline at end of file
--
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