working on a project for class, and i can't seem to get it to work. I initialize an array to zero then open a file, reassigning the array based on the input info. I must print out what is in the array with a function.
i am getting the same output from my function before and after the main part of the body. any hel is appreciated.

#include<iostream>
#include<cmath>
#include<fstream>



using namespace std;

void printbookings( int [], int );
double income(int inumb[],int ic);

int main(){
int trtest, amnts,flightpas,n,cnt;
int bookings[100];
for(n=0;n<10;n++){
bookings[n]=0;
}
printbookings(bookings, n) ;

ifstream flightInfo("flightInfo.dat");
flightInfo>>trtest>>amnts>>flightpas;
while(flightInfo){
if(trtest==1)
bookings[flightpas]+=amnts;

else
if(amnts>bookings[flightpas])
cout<<" no"<<endl;

else
bookings[flightpas] -=amnts;



flightInfo>>trtest>>amnts>>flightpas;
}

flightInfo.close();
printbookings(bookings, n);

system("pause");
return 0;
}

void printbookings( int bookings[],int sz){
cout.width(10);
cout<<"Flnmb";
cout.width(10);
cout<<"Nmbks";
cout<<endl;
cout.width(10);
for(int i=0;i<sz;i++){
cout<< i;
cout.width(10);
cout<<bookings[i];
cout.width(10);

cout<<endl;
}
return ;
}

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If you wish to initialise your array elements to zero, you can declare the array using the following syntax (This means you don't need to loop through and do it manually)
Also, what output are you expecting to get? What output are you actually getting?


Could you give a few lines of your input file as an example of the data you're trying to read? I can't see any obvious problems with your code, except that when you use your flightpas variable in your array subscript, you've not checked that its a valid index for your bookings array (ie, a number in the range 0-99). This may or may not be a problem depending on your input file.

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thanks for the info. The real problem was that i was getting a segmentation error, like you said, and i was misinterpreting my data. I just re-arranged my input and it seems to work fine.

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