Small File i/o Problem

For some reason the function below clears my entire file. I don't know if getline() clears what it gets or if something is wrong with my code. Either way, I need to figure out a way to count the lines without wiping out my file. Thanks!

PHP Code:

---


void lines(){

    File.open("data.txt",ios::in);

    if (File.is_open()){
        
        while(1){
            if (EOF == File.peek()){
                break;
            }

            oflines++;
            File.getline(TempInLine, 256);

        }
    }
    File.close();
    
} 


---

What data type is TempInLine? One solution is getline().

std::getline(File, theString);

Kuphryn

TempInLine is a char[256] and as far as I can tell, getline() is what I am using...

ios::in create a new file every time it's called.

try ios::app if you want to keep adding to the file.