MPRNG.h

//                              -*- Mode: C++ -*-
#ifndef __MPRNG_H__
#define __MPRNG_H__

#include <cstdlib>					// rand

_Monitor MPRNG {
    unsigned int seed_; 
  public:
    MPRNG( unsigned int seed = 1009 ) : seed_( seed ) { srand( seed ); } // set seed
    unsigned int seed() { return seed_; }		// set seed
    void seed( unsigned int seed ) { seed_ = seed; srand( seed ); } // set seed
    unsigned int operator()() { return rand(); }	// [0,UINT_MAX]
    unsigned int operator()( unsigned int u ) { return operator()() % (u + 1); } // [0,u]
    unsigned int operator()( unsigned int l, unsigned int u ) { return operator()( u - l ) + l; } // [l,u]
}; // MPRNG

#endif // __MPRNG_H__