From 2295579eb790d6eff6e54e84c01da6de10809a71 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Tue, 22 May 2012 16:57:15 +0000
Subject: Better win_o ignores.  The random number system is pretty much
 together. We need a few extra helper functions to cover some other good
 things, like normalized floating point numbers, etc.

---
 src/tests/random.cpp | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 src/tests/random.cpp

(limited to 'src/tests/random.cpp')

diff --git a/src/tests/random.cpp b/src/tests/random.cpp
new file mode 100644
index 0000000..3799803
--- /dev/null
+++ b/src/tests/random.cpp
@@ -0,0 +1,49 @@
+#include <bu/randombasic.h>
+#include <bu/randomcmwc.h>
+#include <bu/randomsystem.h>
+#include <bu/sio.h>
+#include <time.h>
+
+using namespace Bu;
+
+template<typename T>
+void coverage()
+{
+	T rand;
+	rand.seed( time( NULL ) );
+
+	uint32_t uBucket[78];
+	memset( uBucket, 0, sizeof(uint32_t)*78 );
+
+	for( int j = 0; j < 1000000; j++ )
+	{
+		uBucket[(int)(((uint32_t)rand.rand())/(double)(0xfffffffful)*78+0.5)]++;
+	}
+
+	uint32_t uMax = 0;
+	for( int j = 0; j < 78; j++ )
+	{
+		if( uMax < uBucket[j] )
+			uMax = uBucket[j];
+	}
+
+	for( int y = 20; y >= 1; y-- )
+	{
+		uint32_t iT = (uint32_t)((y/20.0)*uMax);
+		for( int x = 0; x < 78; x++ )
+		{
+			sio << ((iT<=uBucket[x])?"#":" ");
+		}
+		sio << sio.nl;
+	}
+}
+
+int main()
+{
+	coverage<RandomBasic>();
+	coverage<RandomCmwc>();
+	coverage<RandomSystem>();
+
+	return 0;
+}
+
-- 
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