🚀 go-pugleaf

In article <Bsq3rs.Dz0@wpi.WPI.EDU> nyh@wpi.WPI.EDU (Nevo Y Hed) writes:
>>findfirst() and findnext() have nothing to do with the shell.  They
>>are DOS interrupts (21/4E & 21/4F, respectively).  Unless you are
>>willing to invoke shell to search for each file, which would be
>>pathetically slow, there is nothing JP Software can do for you. 
>>You may use FCBs if you wish, they're faster... not any better though.
>
>BorlandC  has it's own, non-dos findfirst find-next.  I didn't do any
>reading on the difference.
>

That's not quite correct.  I was just looking at the source
code for firstfirst, findnext, _dos_findfirst, _dos_findnext.
Each one makes calls to the appropriate dos call (21/4e or
21/4f).  The only thing that they do on top of that is set
the DTA, restore the DTA, and translate the error message.
The only difference between the _dos_find's and the find's
is that they call different functions to translate from DOS's
error code to their own return values.

I don't know why they use different structure definitions
for the two types of functions.  They pass each structure
directly to DOS, then directly back to the caller.

					--Phil