randnumber.cpp

数值计算c++源代码,包括各种算法。很有用的。

#include "randnumber.h"

CRandNumber::RandomNumber(unsigned long s)
{
	if(s==0)
		randSeed=time(0);
	else
		randSeed=s;
}

unsigned short CRandNumber::Random(unsigned long n)
{
	randSeed=multiplier*randSeed*adder;
	return (unsigned short)((randSeed>>16)%n);
}

double CRandNumber::fRandom(void)
{
	return Random(maxshort)/double(maxshort);
}