81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
#include "stlexam.h"
|
|
#pragma hdrstop
|
|
/**************************************************************************
|
|
*
|
|
* sieve.cpp - sieve program. Section 5.3
|
|
*
|
|
***************************************************************************
|
|
*
|
|
* (c) Copyright 1994, 1998 Rogue Wave Software, Inc.
|
|
* ALL RIGHTS RESERVED
|
|
*
|
|
* The software and information contained herein are proprietary to, and
|
|
* comprise valuable trade secrets of, Rogue Wave Software, Inc., which
|
|
* intends to preserve as trade secrets such software and information.
|
|
* This software is furnished pursuant to a written license agreement and
|
|
* may be used, copied, transmitted, and stored only in accordance with
|
|
* the terms of such license and with the inclusion of the above copyright
|
|
* notice. This software and information or any other copies thereof may
|
|
* not be provided or otherwise made available to any other person.
|
|
*
|
|
* Notwithstanding any other lease or license that may pertain to, or
|
|
* accompany the delivery of, this computer software and information, the
|
|
* rights of the Government regarding its use, reproduction and disclosure
|
|
* are as set forth in Section 52.227-19 of the FARS Computer
|
|
* Software-Restricted Rights clause.
|
|
*
|
|
* Use, duplication, or disclosure by the Government is subject to
|
|
* restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
|
|
* Technical Data and Computer Software clause at DFARS 252.227-7013.
|
|
* Contractor/Manufacturer is Rogue Wave Software, Inc.,
|
|
* P.O. Box 2328, Corvallis, Oregon 97339.
|
|
*
|
|
* This computer software and information is distributed with "restricted
|
|
* rights." Use, duplication or disclosure is subject to restrictions as
|
|
* set forth in NASA FAR SUP 18-52.227-79 (April 1985) "Commercial
|
|
* Computer Software-Restricted Rights (April 1985)." If the Clause at
|
|
* 18-52.227-74 "Rights in Data General" is specified in the contract,
|
|
* then the "Alternate III" clause applies.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#include <vector>
|
|
|
|
#ifdef _RW_STD_IOSTREAM
|
|
#include <iostream>
|
|
#else
|
|
#include <iostream.h>
|
|
#endif
|
|
|
|
int main()
|
|
{
|
|
#ifndef _RWSTD_NO_NAMESPACE
|
|
using namespace std;
|
|
#endif
|
|
|
|
cout << "Prime Sieve program, a test of vectors" << endl;
|
|
//
|
|
// Create a sieve of bits, initially on.
|
|
//
|
|
const int sievesize = 100;
|
|
vector<int,allocator<int> > sieve(sievesize, 1);
|
|
//
|
|
// Now search for 1 bt positions.
|
|
//
|
|
for (int i = 2; i * i < sievesize; i++)
|
|
if (sieve[i])
|
|
for (int j = i + i; j < sievesize; j += i)
|
|
sieve[j] = 0;
|
|
//
|
|
// Now output all the values that are set.
|
|
//
|
|
for (int j = 2; j < sievesize; j++)
|
|
if (sieve[j])
|
|
cout << j << " ";
|
|
cout << endl;
|
|
|
|
cout << "End of Prime Sieve program" << endl;
|
|
|
|
return 0;
|
|
}
|