Path: utzoo!utgpu!watmath!clyde!att!osu-cis!dsacg1!dsacg2!nor1675
From: nor1675@dsacg2.UUCP (Michael Figg)
Newsgroups: comp.sys.amiga
Subject: Examine and ExNext return codes
Keywords: ints, Examine
Message-ID: <246@dsacg2.UUCP>
Date: 29 Dec 88 13:14:46 GMT
Organization: Defense Logistics Agency Systems Automation Center, Columbus, OH
Lines: 53

.
.
In Rob Pecks' Programmer's Guide to the Amiga he says that Examine and 
ExNext return an int. Is this true or has it changed? The following code
seems to get success set to zero, but still goes through the while loop
once. There are about 30-40 files in the "src" directory so I would assume
that the while loop would print all of the entries instead of just exam.c
(which is in "src"). The code is like this:

int success;
.
.
lock = Lock(arg_path, ACCESS_READ);

fib = (struct FileInfoBlock *) AllocMem(sizeof(struct FileInfoBlock),
    MEMF_CLEAR);

success = Examine(lock,fib);
if (success)
{
  printf("\nFile name: %ls\n\n",&fib->fib_FileName[0]);
  while((success = ExNext(lock,fib)) != 0);
  {
    printf("Success equals %d\n", success);
    printf("File name: %s\n",&fib->fib_FileName[0]);
  }
  printf("Success equals %d\n",success);
}
.
.
Okay, I just noticed the ";" after the while statement which expains alot
but just changes the scope of the question to why am I getting zero? Also
in the first printf Rob uses a "%ls" which I have never seen before. In the
other filename printf I use a "%s". Both seem to work. I assumed that this
was an "l" as in long and not a 1 in the book. Any clues as to what is going
on here? The output from this looks like this (from memory):

File name: src

Success equals 0
File name: exam.c
Success equals 0

This was done with Lattice v5.0 and suppose now would be a good time to learn
CodePRobe, right? :-)  Some of the code is Robs' and some mine.

Thanks.
  
-- 
"Better graphics with crayons"                 Michael Figg
Have since switched to oil based paints        DLA Systems Automation Center
but find they really screw up the color        Columbus, Oh.
map and pens!                                  (614)-238-9036