Thread: Reading lines of a text file

Hi,

Is there a way to read the contents of a text file line by line? For example, I have a text file which has two numbers on two different lines like this:

4
5

...is there a way in C++ to load the text file, and then take the '4' from line one and assign it to a variable, and then read the '5' from line two and assign it to a separate variable? e.g:

Code:

// Code to open text file and read the values of lines one and two.

int line1, line2;

line1 = textfile.line1;
line2 = textfile.line2;

cout << line1 << " is the first line of the file, and " << line2 << " is the second line." << endl;

Failing that, is there a way to define variables in a text file, for example if I have a text file with the following contents:

variable1 = 4
variable2 = 5

...is it possible to define variable1 and variable2 in a program, open the text file and then assign the values given to variable1 and variable2 in the text file to the variables in the program?

Thanks!

Oh right - so if I define the variables line1 and line2 in my program, and then make a text file containing:

line1 = 4
line2 = 5

...and then use the file stream to input the values, I will end up with 4 and 5 stored in line1 and line2?

You may want to study this link on basic file i/o.

Jim