Unsetting environment vars in Turbo C

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#1557

From: Stephen M. Dunn
Date: Tue, 13 Mar 1990 19:42

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   Does anyone know how to unset an environment variable in Turbo C
2.0?  I've tried code of the form:

putenv ("foo=");

but it just changes the entry for foo to say

foo=

and I can't find any other functions that make changes to the environment.
Do I have to go in and play around with the environment pointers
directly?
-- 
Stephen M. Dunn                               cs4g6ag@maccs.dcss.mcmaster.ca
          <std_disclaimer.h> = "\nI'm only an undergraduate!!!\n";
****************************************************************************
    "So sorry, I never meant to break your heart ... but you broke mine."

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!helios.physics.utoronto.ca!ists!yunexus!maccs!cs4g6ag
From: cs4g6ag@maccs.dcss.mcmaster.ca (Stephen M. Dunn)
Newsgroups: comp.sys.ibm.pc.programmer,alt.msdos.programmer
Subject: Unsetting environment vars in Turbo C
Message-ID: <25FD4D3F.16447@maccs.dcss.mcmaster.ca>
Date: 13 Mar 90 19:42:55 GMT
Reply-To: cs4g6ag@maccs.dcss.mcmaster.ca (Stephen M. Dunn)
Followup-To: comp.sys.ibm.pc.programmer
Organization: McMaster University, Hamilton, Ontario
Lines: 18