src/tests/random.cpp


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#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;
}