C / C++ / MFC

26-Sep-03 2:34

I have an array:int amounts[]
How do I define size of arrays as an enumeration literal
Num in an anonymous enumeration?

Adam Gritt26-Sep-03 2:46

26-Sep-03 2:46

Typically when I need to do this I have:

enum Test
{
Item 1
Item 2
.
.
.
Item N
TestEnd
}

then I just use (TestEnd - Item 1) for the size on the array. Just make sure that if you add to the enumeration that TestEnd or whatever you call it is always the last item. This will create a proper sized array.

sardinka26-Sep-03 3:00

26-Sep-03 3:00

Here is my code:
Can you help me?
#include <iostream>
using namespace std;
const NUM = 2;
int volumes[NUM], volume;
int count=0;
int amounts[NUM],amount;
const double price=0.05;
const double fee=12.0;

int main()
{
do
{
cout<<"Please enter the volume of water used by a customer ";
cout<< "during a month (in gallons).(Zero to end):";
cin>>volume;
if (volume==0.0)
break;
if (count==NUM)
break;
volumes[count++]=volume;
amount=(volume*price)+fee;
amounts[count++]=amount;

}
while(true);
return 0;
}

Adam Gritt26-Sep-03 3:20

26-Sep-03 3:20

// include <float.h> and <iostream> in stdafx.h
#include "stdafx.h"

using namespace std;
const NUM = 2;
// changed int to double because volume usually isn't in whole numbers
//int volumes[NUM], volume;
double volumes[NUM], volume;
int count=0;
// use double for amounts because you are using doubles to multiply
double amounts[NUM],amount;
const double price=0.05;
const double fee=12.0;

int main()
{
do
{
cout<<"Please enter the volume of water used by a customer ";
// cout won't get you the value must use cin
//cout<volume;
cin="">> volume;

// with doubles never check for equality, check for greater or
// less than
if (volume < DBL_MIN )
break;

// move this check to the end of the while loop
// and make it check for >= instead of ==
//if (count==NUM)
// break;

// also you are incrementing count twice. only do it once
//volumes[count++]=volume;
amount=(volume*price)+fee;
//amounts[count++]=amount;

volumes[count] = volume;
amounts[count] = amount;
count++;

if( count >= NUM )
break;
}
while(true);
return 0;
}

sardinka26-Sep-03 3:35

26-Sep-03 3:35

Thanks for the comments. It helps a lot.
One more question:
I am trying to display all values after user enters 0. I wrote the following code. I can't see what is incorrect in this code.
displayArray();
void displayArray(const int volumes[NUM];const int NUM)
{
count<<"\n";
int count=0;
while (count

Adam Gritt26-Sep-03 3:48

26-Sep-03 3:48

Also don't forget to predefine the function unless you put the fuction code before main.

displayArray( volumes, count);

// First the Function declaration is incorrect.
// you have a semicolon where there should be a comma
// and you have volumes declared as int when it should be
// double but that was covered previously
// also you don't need NUM as a variable because it is a
// program constant. Instead pass Count

//void displayArray( const int volumes[NUM]; const int NUM)
void displayArray( const double volumes[NUM], const int Count)
{
cout<<"\n";
int nCount=0;

while ( nCount < Count)
{
cout<< volumes[nCount] << " ";
nCount++;
}

int nPause;
cin >> nPause;
}

sardinka26-Sep-03 3:53

How to dump debug information to VC 6.0's debug window in a MFC project?

26-Sep-03 3:53

Thank you for comments it explains a lot (I am in school ) Smile | :)

George226-Sep-03 2:04

Re: How to dump debug information to VC 6.0's debug window in a MFC project?

26-Sep-03 2:04

Hello, everyone!

How to dump some debug information (I mean the information of my special program information, for example, the value of a variable which I am interested in) to VC 6.0's debug window in a MFC project? Who can show me an example?

Thanks in advance,
George

Adam Gritt26-Sep-03 2:48

Re: How to dump debug information to VC 6.0's debug window in a MFC project?

26-Sep-03 2:48

afxDump << nVar;

afxDump is the stream that outputs to the debug window in the Visual Studio IDE. It works in both 5.0, 6.0 and .NET.

George226-Sep-03 3:08

Re: How to dump debug information to VC 6.0's debug window in a MFC project?

26-Sep-03 3:08

Thanks, Adam buddy!

George

David Crow26-Sep-03 2:57

David Crow

26-Sep-03 2:57

Search MSDN for the TRACE() macros.

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Re: How to dump debug information to VC 6.0's debug window in a MFC project?

George226-Sep-03 3:09

Re: How to dump debug information to VC 6.0's debug window in a MFC project?

26-Sep-03 3:09

Thanks, DavidCrow buddy!

George

Adam Gritt26-Sep-03 3:25

Re: How to dump debug information to VC 6.0's debug window in a MFC project?

26-Sep-03 3:25

A good utility for using the trace functionality in your application so that you can also send to a different viewer (for more real time debugging) go here http://www.dilascia.com/
and get the Trace Win app.

George226-Sep-03 3:40