random.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 54 行

#ifndef RANDOM_H
#define RANDOM_H


/* Random.h -- declarations for pseudo-random number generator

        THIS SOFTWARE FITS THE DESCRIPTION IN THE U.S. COPYRIGHT ACT OF A
        "UNITED STATES GOVERNMENT WORK".  IT WAS WRITTEN AS A PART OF THE
        AUTHOR'S OFFICIAL DUTIES AS A GOVERNMENT EMPLOYEE.  THIS MEANS IT
        CANNOT BE COPYRIGHTED.  THIS SOFTWARE IS FREELY AVAILABLE TO THE
        PUBLIC FOR USE WITHOUT A COPYRIGHT NOTICE, AND THERE ARE NO
        RESTRICTIONS ON ITS USE, NOW OR SUBSEQUENTLY.

Author:
        K. E. Gorlen
        Computer Systems Laboratory, DCRT
        National Institutes of Health
        Bethesda, MD 20892

log:    RANDOM.H $
Revision 1.2  95/01/29  13:27:32  NT_Test_Machine
*** empty log message ***

Revision 1.1  90/05/20  21:40:52  Anthony_Scian
.

 * Revision 3.0  90/05/20  17:40:51  kgorlen
 * Release for 1st edition.
 * 
*/

#include "Object.h"

class Random: public VIRTUAL Object {
        DECLARE_MEMBERS(Random);
        long    s1,s2;
        void checkSeeds();
protected:              // storer() functions for object I/O
        virtual void storer(OIOofd&) const;
        virtual void storer(OIOout&) const;
public:
        Random();
        Random(long seed1, long seed2);
        float next();
        virtual void deepenShallowCopy();       // {}
        virtual unsigned hash() const;
        virtual bool isEqual(const Object&) const;
        virtual void printOn(ostream& strm =cout) const;
private:                            // shouldNotImplement()
        virtual int compare(const Object&) const;
};

#endif