rand32.cpp

来自「uploading the file , the system will del」· C++ 代码 · 共 21 行

#include "rand32.h"

// I AM CONVINCED THIS IS SUFFICIENTLY RANDOM
int randOnRange(int low, int high) { 
	if(high-low+1>0) return rand() % (high-low+1) + low;
	else return low;
}

// I AM CONVICNED THIS IS SUFFICIENTLY RANDOM:
double randNorm() {
  return ( (double) rand()) / ((double) RAND_MAX);
}

// I AM CONVICNED THIS IS SUFFICIENTLY RANDOM:
// Npositives approx Equal Nnegatives &&
// average approx equal 0 -- distribution test pending
int rand32() {
  return ( rand() << 15 ) | rand() | ( rand() << 30 );
}