True random number generator C++

Questions

1. Do these codes generate true random numbers?
2. If not: can you prove their pseudo-randomness?

For computers with more than two CPUs

#include<chrono>
#include<iostream>
#include<thread>
using namespace std;

#define Mili 7
#define Base 7
#define Thrs 2

typedef unsigned char      Num;
typedef unsigned long long Out;

volatile Out out,tmp;

void inline thr(Num const num){
 while(true)
  out=out*Base+tmp,tmp=tmp*Base+num;
}

int main(){
 thread ths[Thrs];
 for(Num i=0;i<Thrs;++i)
  ths[i]=thread(thr,i);
 this_thread::sleep_for(chrono::milliseconds(Mili));
 while(true)
  cout.write((char*)&out,sizeof(out));
}

For computers with two CPUs

#include<iostream>
using namespace std;

#define Base 7
#define Iter 53

typedef unsigned char      Num;
typedef unsigned long long Out;

volatile Out out,tmp;

int main(){
 for(Num i=0;i<Iter;++i)
  #pragma omp parallel for schedule(runtime)
  for(Num num=0;num<Iter;++num)
   out=out*Base+tmp,tmp=tmp*Base+num;
 while(true){
  #pragma omp parallel for schedule(runtime)
  for(Num num=0;num<Iter;++num)
   out=out*Base+tmp,tmp=tmp*Base+num;
  cout.write((char*)&out,sizeof(out));
 }
}

For computers with one CPU:

#include<chrono>
#include<iostream>
#include<thread>
using namespace std;

#define Nano 1
#define Mili 7
#define Base 7
#define Thrs 2

typedef unsigned char      Num;
typedef unsigned long long Out;

volatile Out out,tmp;

void inline thr(Num const num){
 while(true)
  out=out*Base+tmp,tmp=tmp*Base+num;
}

int main(){
 thread ths[Thrs];
  for(Num i=0;i<Thrs;++i)
   ths[i]=thread(thr,i);
 this_thread::sleep_for(chrono::milliseconds(Mili));
 while(true)
  cout.write((char*)&out,sizeof(out)),
  this_thread::sleep_for(chrono::nanoseconds(Nano));
}

More information:

http://ift.tt/1C6YOkq
http://youtube.com/watch?v=AKy00kxClJk