#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>
usingnamespace std;
// function prototypes
int OpenAndValidateInputFile (ifstream& textIn);
void ReadAndStoreInputFile (ifstream& textIn, char unitType, double utilityCharge);
int main ()
{
//
constint MAX = 500; // maximum number of stored units in array
// local variables
ifstream textIn; // input file stream variable
char unitType = 0; // unit type - 'R' residential or 'B' business
double utilityCharge = 0; // utility charge
char ResidentialUnit [MAX]; // array for 'R' residential units
char BusinessUnit [MAX]; // array for 'B' business units
OpenAndValidateInputFile (textIn); // function call
ReadAndStoreInputFile (textIn, unitType, utilityCharge); // function call
system ("PAUSE");
}
int OpenAndValidateInputFile (ifstream& textIn)
{
// open input file
textIn.open ("UNITS.TXT");
// check if file opens successfully
// if not, print a warning and exit program from main with a return code 1
if (!textIn.is_open ())
{
cout << "Failed to open input file UNITS.TXT" << endl;
return 1;
}
}
void ReadAndStoreInputFile (ifstream& textIn, char unitType, double utilityCharge)
{
while (textIn.peek () != EOF)
{
textIn >> unitType;
textIn >> utilityCharge;
}
if (unitType == 'R')
{
}
Can anyone explain the process of storing units in an array?
As im sure you have noticed, I stopped the code at the if statement...
what I am attempting to do is open and validate a text file that contains an 'R' for residential units and a 'B' for business units, and next to the letter it has a utility charge..
i.e.
unitType
R 74.12
B 102.93
R 68.02
I am opening and validating, then reading the data line by line. What I need to do is if the unitType is R, it needs to be stored in the ResidentialUnit array, and if it is a B needs to be stored in the BusinessUnit array, for calculations later...
Any suggestions or explanations would be greatly appreciated!
I think what you intended to store in the respective arrays is the utility change.
If that is the case, the arrays need to be doubles, not chars.
You also need a count of how many of each you have.
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double ResidentialUnit [MAX];
double BusinessUnit [MAX];
int ResidentialCount = 0;
int BusinessCount = 0;
Then simply store the charge in the respective array and increment the count:
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if (unitType == 'R')
{ // Check here if the size of the array has been exceeded
ResidentialUnit[ResidentialCount] = utilityCharge;
ResidentialCount++; // Increment the number of units
}
if (unitType =='B')
{ // Check here if the size of the array has been exceeded
BusinessUnit[BusinessCount] = utilityCharge;
BusinesslCount++; // Increment the number of units
}
