While getline() always skips the last line

[herad]

I am trying to read from a text file using stdin my text file contains something like this:

Hello world
This is a test

Goodbye

Notice there are 4 lines in the text file, and one empty newline.
I use this to read the file:

int main() {
	string input;
	int count;
	while(getline(cin,input)){
		count++;
		cout << input << endl;
	}

	cout << "There are " << count << " lines"<<endl;
	return 0;
}

The output always returns everything but the last line. If I put an extra newline character then it reads it correctly. Moreover it doesn’t print the cout “There are”. But how could I make it so it reads the line even if there’s no newline character at the end?

[rjphares]

Here is an example:
http://www.cplusplus.com/reference/ios/ios/eof/

[dhayden]

After adding

#include <iostream>
using namespace std;

to the beginning of your code, it works fine for me. What compiler are you using?

[herad]

@dhayden, I do have that in my code already. I'm using Eclipse with MiniGW GCC

[herad]

@rjphares, this solution requires using file operations which is not what I'm trying to do. It needs to be done using stdin. I should say that the txt is passed as a parameter in the program when executing it
./program < text.txt

[salem c]

It seems to work for me, whether the last line has a newline or not.

$ hd foo.txt
00000000  48 65 6c 6c 6f 20 77 6f  72 6c 64 0a 54 68 69 73  |Hello world.This|
00000010  20 69 73 20 61 20 74 65  73 74 0a 0a 47 6f 6f 64  | is a test..Good|
00000020  62 79 65 0a                                       |bye.|
00000024
$ hd wobble.txt 
00000000  48 65 6c 6c 6f 20 77 6f  72 6c 64 0a 54 68 69 73  |Hello world.This|
00000010  20 69 73 20 61 20 74 65  73 74 0a 0a 47 6f 6f 64  | is a test..Good|
00000020  62 79 65                                          |bye|
00000023
$ ./a.out < foo.txt
Hello world
This is a test

Goodbye
There are 4 lines
$ ./a.out < wobble.txt 
Hello world
This is a test

Goodbye
There are 4 lines
$ 

> I'm using Eclipse with MiniGW GCC
Are you running this from within the IDE, or from a separate command line?

[herad]

I tried it with several ways. First I did through the IDE itself which was giving me the problem.
Then within the IDE, I had the input & output redirect to a file. That didn't work either.
Now I just tried manually usually the command line method and surprisingly it works. I'm not sure why it doesn't work with the other methods. But then when it reaches this line:

cout << "There are " << count << " lines"<<endl;

Why is it returning 4201167 ?

[salem c]

> int count;
Well in the code you posted, you don't initialise count to be 0.

[herad]

doh! Of course silly me! Now it's working thank you!
I would still appreciate it though if someone can explain better how come getline() wouldn't work correctly from the IDE. It also wouldn't exit the while loop either.