Cannot simply read from file

[roots]

I copied some code straight out of the book and cannot read from a file.
gradfile.txt is made, placed in the project directory, and has:
100
200
300
any ideas?

#include <iostream>
#include <fstream>
using namespace std;

int main()
{

	ifstream inputFile;
	inputFile.open("gradfile.txt");

	int number;
	while (inputFile >> number)
	{
		cout << number << endl;
	}

	
	inputFile.close();
	return 0;
}

[Naughty Albatross]

Hi,
Try this :

#include <iostream>
#include <fstream>
using namespace std;
int main()
{
	ifstream inputFile;
	inputFile.open("gradfile.txt");
	int number;
	if(!inputFile.is_open())
	{
		cout << "Error : gradfile.txt not found" << endl;
	}
	while (inputFile >> number)
	{
		cout << number << endl;
	}
	
	inputFile.close();
	return 0;
}

And let us know if any message is found in your program output.

[roots]

Gives me the Error: "gradfile.txt" not found
Is it not in the right spot?

[Naughty Albatross]

Yes. Place it in the folder where your test program is.

[Naughty Albatross]

Does that help? :)

[roots]

No, its in the the "fstream" project folder...triple checked.
Hell, I put a copy in the debug folder to and tried it.

[Naughty Albatross]

Instead of openning the executable file with your compiler, you may also try manually openning the file.

[roots]

Not sure what you mean. I am referring to a book I have but I don't see anything different from what I have.

[roots]

Do you mean giving the directory?

[Naughty Albatross]

> Not sure what you mean.
Open the executable file with Windows Explorer.
Make sure your input file "gradfile.txt" is there.

[roots]

Stupid me. I had "gradfile.txt.txt"...
I am doing the find the average, lowest, highest, from a file with functions and had to take it a few steps back to figure out this issue.
Thanks!

[Naughty Albatross]

Glad it helped :)

[roots]

This question is still about input from a file so i'll post here.

while (inputFile >> grades[pos])
	{
		pos++;
		inputFile >> grades[pos];
		


	}

only the high is correct.
so while the first grade is being loaded in the array
increment the counter, which is set to 0
and input the next until no more input, correct?

I used a for loop since I knew how many inputs there would be, which worked, but still don't get how the while didn't work

[Naughty Albatross]

pos = 0;
while (inputFile >> grades[pos])
	{
		pos++;
		inputFile >> grades[pos];
		
	}

And that's it! :)

[Naughty Albatross]

Does that help you? :)

[roots]

I will try this when I get home, but this does make a bit more sense.