Function that reads .txt into a struct

[yellowsnow4free]

Okay, so for my CS15 class I need to write a function that reads the data from a .txt file into a struct.

I'm close, but I keep getting just a couple errors.

#include <fstream>
#include <iomanip>
#include <iostream>
#include <string>

using namespace std;

// Here is my struct layout:

struct Diamond {
    string stockNumber;
    string cut;
    char color;
    string clarity;
    double carats;
    double cost;
    };

int loadFile(Diamond diamondData[]) { // error: too few arguments to function ‘int loadFile(Diamond*)’

	int totalData = 0;

	ifstream inFile;

	string fileName;
	cout << "Enter filename: ";
	cin >> fileName;

	inFile.open(fileName.c_str());

	do {
		inFile >> diamondData[totalData].stockNumber >> diamondData[totalData].cut >> diamondData[totalData].color >> diamondData[totalData].clarity >> diamondData[totalData].carats >> diamondData[totalData].cost;
        totalData++;
    } while (!inFile.eof());

    inFile.close();

    cout << totalData << " were loaded.";

	return (totalData - 1);
}

int main() {

// Want to call loadFile() here
loadFile(); // error: at this point in file
}

Basically, I need to read the .txt file data into a struct that can be accessed by main() and also 2 other functions.

Can anyone help me? I'd really appreciate it

[Galik]

Can you tell us what the errors are that you are getting?

Also I would consider doing your main loop differently. At the moment you will add a record to your array even if the read fails or reaches the end of file. I would consider something like this:

inFile.open(fileName.c_str());

Diamond d; // input value
while(inFile >> d.stockNumber >> d.cut >> d.color >> d.clarity >> d.carats >> d.cost)
{
    // now we know that the read was a success so we can safely add our data
    diamondData[totalData] = d;
    ++totalData;
}

Also I am concerned that there is no bounds checking on your array. I would seriously consider using a std::vector instead:

http://www.cplusplus.com/reference/stl/vector/

[yellowsnow4free]

@ Galik

I added the errors above.

As for your suggestions, I will certainly look into them.

[Galik]

Your function loadFile() is expecting you to pass in an array of type Diamond, but you don't pass it anything at all.