Path: utzoo!utgpu!water!watmath!clyde!rutgers!umd5!purdue!gatech!hao!noao!arizona!naucse!wew
From: wew@naucse.UUCP (Bill Wilson)
Newsgroups: comp.lang.c
Subject: Re: Turbo C Date Conversion
Summary: Turbo C and dates
Keywords: Turbo C, date
Message-ID: <541@naucse.UUCP>
Date: 21 Jan 88 19:17:52 GMT
References: <454@picuxa.UUCP>
Organization: Northern Arizona University, Flagstaff, AZ
Lines: 23

In article <454@picuxa.UUCP>, rcr@picuxa.UUCP (Richard Court ) writes:
> I am writing a program to list directory attributes.  I am using the
> "findfirst" and "findnext" routines to extract file information for me
> and then "strcpy" data out of the "ffblk" structure to fill my arrays.
> 
> What I can't figure out is how to convert the file date and time.  They
> are placed in the ffblk structure as packed integers and I'll be damned
> if I can figure out a way to get them into strings!

Norton's "Programmer's Guide to the IBM PC" may be a great help
to you when working on PC systems type programs.  To decode the
date try the following algorithm:
  d=dosdate and 31
  m=(dosdate shr 5) and 15
  y=(dosdate shr 9) + 1980

For the time:
  min=(dostime(shr 5) and 63
  hour=(dostime shr 11)

You'll have to transalte this psuedo code into C.

Bill Wilson