Reading from a text file C++

Question

So lets say I have a text file of strings. Lets say I read half of the text file into an array of strings or some kind of buffer. And then I do some operations on that array. Then lets say a want to go back to my text file and start reading the text file from where I left off. How would I do that? How do I tell the program to start off where I last stopped reading in a text file. I do not need the code necessarily but rather the process/logic. Thanks.

Answer 1

This is what im using to read my file, usually i keep a counter to read until where i am now (The Current Position of my reading)

void readData(){
        FILE *f=fopen ("db.txt","r");
        if(!f)
        {
            printf("File Not Found\n");
        }
        else
        {
            while(!feof(f))
            {
                fscanf(f,"%[^#]#%d\n",&test1[counter].name,&test1[counter].level);
                counter++;
            }
        fclose(f);
        }
    }

My Point is keep a counter of where your last reading is and then continue from the last counter you are on. Hope this helps. Cheers!