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From: steve@groucho.ucar.edu (Steve Emmerson)
Newsgroups: comp.std.c
Subject: Re: Must main return a value?
Message-ID: <11980@ncar.ucar.edu>
Date: 29 Jun 91 03:40:09 GMT
References: <7830001@hpwrce.HP.COM> <1991Jun28.043342.27540@ptcburp.ptcbu.oz.au> <787@taumet.com> <16577@smoke.brl.mil>
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Organization: University Corporation for Atmospheric Research (UCAR)
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In <16577@smoke.brl.mil> gwyn@smoke.brl.mil (Doug Gwyn) writes:

>In article <787@taumet.com> steve@taumet.com (Stephen Clamage) writes:
>>Except that EXIT_SUCCESS need not have the value 0.  This might be
>>wrong in an ANSI environment.

>No -- while it is true that EXIT_SUCCESS might be defined as a nonzero value,
>a conforming hosted implementation must also support the exit status value 0
>as a "separate but equal" way to specify successful termination status.

In a POSIX environment, at least, EXIT_SUCCESS *is* 0.  Period.

Are there non-POSIX (or pre-POSIX) environments in which EXIT_SUCCESS is
(or was) not zero (I know about VMS)?

Steve Emmerson        steve@unidata.ucar.edu        ...!ncar!unidata!steve