76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
/* $Id: t_bdCPP.c $ */
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/***** BEGIN LICENSE BLOCK *****
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright (c) 2001-15 David Ireland, D.I. Management Services Pty Limited
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* <http://www.di-mgt.com.au/bigdigits.html>. All rights reserved.
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*
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***** END LICENSE BLOCK *****/
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/*
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* Last updated:
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* $Date: 2015-10-22 10:23:00 $
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* $Revision: 2.5.0 $
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* $Author: dai $
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*/
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#include "bigd.h"
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#include "bigdRand.h"
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#include <iostream>
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using namespace std;
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int main()
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{
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int ver;
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ver = bdVersion();
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cout << "bdVersion = " << ver << "\n";
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BIGD u, v, w;
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/* Create new BIGD objects */
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u = bdNew();
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v = bdNew();
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w = bdNew();
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/* Compute 2 * 0xdeadbeefface */
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bdSetShort(u, 2);
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bdConvFromHex(v, "deadbeefface");
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bdMultiply(w, u, v);
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/* Display the result */
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bdPrintHex("", u, " * ");
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bdPrintHex("0x", v, " = ");
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bdPrintHex("0x", w, "\n");
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/* and again in decimal format */
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bdPrintDecimal("", u, " * ");
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bdPrintDecimal("", v, " = ");
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bdPrintDecimal("", w, "\n");
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/* Add with digit overflow */
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/* ffffffff+ffffffff=00000001 fffffffe */
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bdSetShort(u, 0xffffffff);
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bdSetShort(v, 0xffffffff);
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bdAdd(w, u, v);
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bdPrintHex("", u, "+");
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bdPrintHex("", v, "=");
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bdPrintHex("", w, "\n");
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/* Generate some random digits using internal RNG */
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cout << "Some random numbers:\n";
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bdSetShort(u, bdRandDigit());
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bdPrintHex("short: ", u, "\n");
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bdRandomBits(u, 512);
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bdPrintHex("512 bits: ", u, "\n");
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/* Free all objects we made */
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bdFree(&u);
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bdFree(&v);
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bdFree(&w);
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return 0;
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}
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