Looping error

My gigantic while loop works great except that it repeats the very last line in the output. Any ideas on where the error might be would be appreciated.

Here is a piece of the loop:

Code:

while (!fin.eof()) {
    fin >> ch1;
      if ((ch1 == 'M') || (ch1 == 'F')) {
  fin >> ch2;
  if (ch1 == 'M') {
   males++;
  } else {
   females++;
  if (ch2 == 'A') {
   fin >> age;
   ageAccum = age + ageAccum;
   count++;
   fin >> dummych;
   fin >> weight;
   weightAccum = weight + weightAccum;
   count2++;
   newlog(ch1, age, weight, fout);
  } else {
   fin >> weight;
   weightAccum = weight + weightAccum;
   count2++;
   fin >> dummych;
   fin >> age;
               ageAccum = age + ageAccum;
   count++;
   newlog(ch1, age, weight, fout);
  }
  }

If you need the whole thing, let me know.

>it repeats the very last line in the output
>while (!fin.eof()) {
eof doesn't return true until after you've tried and failed to read from the stream. This means that the last record will be processed twice because the input failed and the last record is supposedly still in memory.

This is also a FAQ entry, if you want to look it up. The entry is concerning feof, but the problem is the same.

I've tried putting the first input before the while loop, but that didn't work. Any actual coding ideas?

I guess it is to hard to find what you where told to read. Let's do it, in a bold font link
http://faq.cprogramming.com/cgi-bin/...&id=1043284351