Code:int i = 0, j, index[i]; char first_name[999][22]; while(fscanf(data_file, "%s", first_name[i])) { i++; //welcome to C! :) = i + 1; index[i] = i; //you're building an index array at the same time? Good! } //i has just counted the number of names in the array, so it can be used: --i; //step it back one time for (j = 0; j < i; j++) { //start with 0 not 1 printf("%s, ", first_name[j]); }
Last edited by Adak; 03-31-2011 at 05:20 PM.
hmm, i gave it a shot but i just get segmentation faults. i also tried playing around with the loop and the size of the array just to see where the program was trying to call on something it couldnt but no dice
why does my professor hate us so much
Did you change the data in the file, so it was just first names?
You can't just ask the computer program to scan for one thing, and not give it code to handle the rest of the data - it's all read in SEQUENCE.
Try it with a data file of just a few first names, in a different data file, and change the name of the file your program is opening.
Alex
Henrik
Jonathan
Anze
Jarome
Patrick
Brad
Teemu
Sidney
oooooooh i see!
now if i i had a data file like our TA's are going to use with mutliple columns of data, how exactly would i make the scan work around this?
sorry for asking so many questions, we reeeeeeeally werent taught anything about dealing with these kinds of problems so im at a complete loss right now. i definitely want to keep taking classes for this in school but this is driving me mental lol
