how can i address a character in a .txt file as i would do with an array in c++?

Question

Im new. I want to address a character in a .txt file as I would do in an array like this:

int a[100];
for(i=0; i<100; i++) {
   a[i]=x;
//or
   cin >> a[i];
//or
   cout >> a[i];
}

can I use this method to the .txt file? if I can do this with pointers, how?

You can read the file into an array (or better, string or vector). — interjay, Jan 19 '20 at 21:40
I know, but I have to work with a huge database like 1 billion numbers and i have to do it with low ram usage. — noobinator boi, Jan 19 '20 at 21:46
One problem at a time. I suggest that you follow some online tutorials on reading large files in C++. [Here](https://stackoverflow.com/a/30619883/6334782) is an answer you can read on achieving just that. — otoomey, Jan 19 '20 at 22:06
thanks for the suggestion! how can i do that? i tried to get a pointer of the first character but it didn't work. — noobinator boi, Jan 19 '20 at 22:40

score -1 · Answer 1 · answered Jan 19 '20 at 21:48

-1

As mentioned in comments you can read the contents of that .txt file into a char array, and then work on that array data.

answered Jan 19 '20 at 21:48

Kieran

1 Answers1