Desperate help with C++ project

[bsdixon21222]

Ok, so I have a project that I need to do with C++. I have finished all of it, but one part. One of the fuctions (filling the array) needs to open a file for reading ( (7,16,43,23,53) etc) and output it to an arry of ints. I can get the first one to read in fine, but then it seems to ignore the rest. I suspect it involves the comma because when I replace them with spaces it works perfect. The issue is that I have to keep everything the way it is, just remove the commas. I am at a loss as to how and have tried so many things. I am not that good with C++ and I could really use some help. Code is below, anything offered would be such a great help.

#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
 
using namespace std;
 
void FillMyInput();
void FillMyArray( int arr[], int SIZE );
int GetMax( int arr[], int SIZE );
void OutputArray( int arr[], int SIZE );
 
const int SIZE = 10;
 
int main(int argc, char* argv[])
{
    int arr[ SIZE ];
 
    FillMyInput();
 
    FillMyArray( arr, SIZE );
 
    GetMax( arr, SIZE );
 
    OutputArray( arr, SIZE );
 
    return 0;
}
 
void FillMyInput()
{
    ofstream fillFile;
    fillFile.open( "myInput.txt" );
    fillFile << "7,64,15,12,3,78,23,14,45,1";
    fillFile.close();
    cout << "Filled file with text" << endl;
}
 
void FillMyArray( int arr[], int SIZE )
{
    ifstream arrayFile;
    arrayFile.open( "myInput.txt" );
    for( int i = 0; i < SIZE; i++ )
        arrayFile >> arr[i];
        cout << "done\n";
    cout << endl;
    arrayFile.close();
    cout << "Filled arrary with file contents" <<endl;
}
 
int GetMax( int arr[], int SIZE )
{
    char c;
    int maxNum = 0;
    for( int i = 0; i < SIZE; i++ )
    {
        if (arr[i] > maxNum)
            maxNum = arr[i];
    }
    cout << "\nThe largest number in the array was " << maxNum <<endl; 
    return maxNum;
 
}
 
void OutputArray( int arr[], int SIZE )
{
    cout << "\nArray Outputs\n" << endl;
    for( int i = 0; i < SIZE; i++ )
        cout << arr[i] << endl;
    cout << endl;
}
 
 
 

[gvijayaratnam]

Hi,

Try this way

#DEFINE C_DELIMETER_COMMA ","

char *p_szToken = '\0';
p_szToken = strtok ( m_szSource, C_DELIMETER_COMMA );
while( p_szToken != NULL )
{
// read the values from p_szToken
p_szToken = strtok( NULL, C_DELIMETER_COMMA );
}

I think this might help you

Ganesh

[weaknessforcats]

Do not use strtok() in C++. The entire C string library is deprecated in C++.

If you have ints like this:
1,2,3,4,5,6

Then I suggest you read them in by:

int arr[6];
char comma;
 
arrayFile >> arr[i] >> comma;
 

That is, eat the comma by >> to a char.