Checking if 2 file pointers refer to the same file from C program.

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Article #14990

#14990

From: S. Jayashankar
Date: Fri, 26 Dec 1986 04:11

13 lines
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[Someone's not hungry enough.]

Does anyone know how to check whether 2 file pointers opened
independently in a C program point to the same disk file?  Using only
the documented DOS calls.  How does the DOS copy command know when a
file is being copied to itself?

Any help will be appreciated.  Thank you.

Jai.
-----
Jai Srinivasan, UUCP:  {gatech,harvard,ihnp4,pyramid,seismo}!ut-sally!im4u!jai
ARPA:  jai@im4u.UTEXAS.EDU, jai@sally.UTEXAS.EDU

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!im4u!jai
From: jai@im4u.UUCP (S. Jayashankar)
Newsgroups: comp.sys.ibm.pc
Subject: Checking if 2 file pointers refer to the same file from C program.
Message-ID: <1291@im4u.UUCP>
Date: Thu, 25-Dec-86 23:11:00 EST
Article-I.D.: im4u.1291
Posted: Thu Dec 25 23:11:00 1986
Date-Received: Fri, 26-Dec-86 21:37:29 EST
Reply-To: jai@im4u.UUCP (Jai Srinivasan)
Distribution: world
Organization: U. Texas CS Dept., Austin, Texas
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