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// -------- Start of File -------- //
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// ----------------------------------------------------------- //
// C++ Source Code File Name: testprog.cpp
// Compiler Used: MSVC, BCC32, GCC, HPUX aCC, SOLARIS CC
// Produced By: glNET Software
// File Creation Date: 02/04/1997
// Date Last Modified: 05/25/2001
// Copyright (c) 2001 glNET Software
// ----------------------------------------------------------- //
// ------------- Program Description and Details ------------- //
// ----------------------------------------------------------- //
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA
Demo of how to re-open a database file using the gxDatabase
manager.
*/
// ----------------------------------------------------------- //
#include <iostream.h>
#include <string.h>
#include "gxdbase.h"
#include "gxdstats.h"
#include "gxfloat.h"
const int name_length = 16;
class DatabaseObject
{
public:
DatabaseObject() { name[0] = 0; oid = (gxINT32)0, cid = (gxFLOAT64)0; }
DatabaseObject(const char *s, long i, double d);
public:
friend void *operator new(size_t n, char *s, int i, double d,
gxDatabase *f) {
void *ptr = new DatabaseObject(s, i, d);
f->Write(ptr, n, f->Alloc(n));
return ptr;
}
public: // Platform independent data members
char name[name_length]; // Fixed string type
gxINT32 oid; // Integer type
gxFLOAT64 cid; // Floating point type
};
DatabaseObject::DatabaseObject(const char *s, long i, double d)
{
for(int j = 0; j < name_length; j++) name[j] = 0; // Clear the name string
strcpy(name, s);
oid = i;
cid = d;
}
void PausePrg()
{
cout << endl;
cout << "Press enter to continue..." << endl;
cin.get();
}
int main()
{
gxDatabase *f = new gxDatabase;
const char *fname1 = "cat.gxd";
const char *fname2 = "dog.gxd";
const char *fname3 = "mouse.gxd";
cout << endl;
cout << "Testing the gxDatabase::ReOpen() function." << endl;
if(!gxDatabase::Exists(fname1)) f->Create(fname1);
if(CheckError(f) != 0) return 1;
if(!gxDatabase::Exists(fname2)) f->Create(fname2);
if(CheckError(f) != 0) return 1;
if(!gxDatabase::Exists(fname3)) f->Create(fname3);
if(CheckError(f) != 0) return 1;
// Variables for Part class objects
int id = 17; double price = 42.97;
cout << endl;
cout << "Writing one object to: " << fname1 << endl;
f->Open(fname1);
if(CheckError(f) != 0) return 1;
new("Cat", 0L, 2000.101, f) DatabaseObject;
PausePrg();
DatabaseStats(f);
PausePrg();
cout << "Writing two objects to: " << fname2 << endl;
f->Open(fname2);
if(CheckError(f) != 0) return 1;
new("Cat", 0L, 2000.101, f) DatabaseObject;
new("Dog", 0L, 2000.101, f) DatabaseObject;
PausePrg();
DatabaseStats(f);
PausePrg();
cout << "Writing three objects to: " << fname3 << endl;
f->Open(fname3);
if(CheckError(f) != 0) return 1;
new("Cat", 0L, 2000.101, f) DatabaseObject;
new("Dog", 0L, 2000.101, f) DatabaseObject;
new("Mouse", 0L, 2000.101, f) DatabaseObject;
PausePrg();
DatabaseStats(f);
PausePrg();
cout << "Exiting..." << endl;
f->Close();
if(CheckError(f) != 0) return 1;
delete f;
return 0;
}
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