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Groups > comp.lang.c > #70973

Re: why "int s = setjmp(env)" fails?

From Keith Thompson <kst-u@mib.org>
Newsgroups comp.lang.c
Subject Re: why "int s = setjmp(env)" fails?
Date 2015-09-20 07:33 -0700
Organization None to speak of
Message-ID <lnwpvlcg9m.fsf@kst-u.example.com> (permalink)
References <d8e6c449-3aad-405e-b8a2-5fa73ee6a9a3@googlegroups.com>

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i@introo.me writes:
> while(setjmp(env)) will succeed,  (1)
>
> however,
>
> volatile int s = setjmp(env) will fail.  (2)

What do you mean by "fail"?  The standard doesn't define the behavior,
but that deons't *necessarily* mean it won't "work".

> what's the technical complexity/difficulty that hinders (2) ?
>
> AFAIK, (2) is still a simple statment.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"

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Thread

why "int s = setjmp(env)" fails? i@introo.me - 2015-09-19 21:59 -0700
  Re: why "int s = setjmp(env)" fails? Nobody <nobody@nowhere.invalid> - 2015-09-20 10:53 +0100
  Re: why "int s = setjmp(env)" fails? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-09-20 07:47 -0400
    Re: why "int s = setjmp(env)" fails? supercat@casperkitty.com - 2015-09-21 08:51 -0700
      Re: why "int s = setjmp(env)" fails? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-09-21 12:52 -0400
        Re: why "int s = setjmp(env)" fails? supercat@casperkitty.com - 2015-09-21 11:44 -0700
          Re: why "int s = setjmp(env)" fails? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-09-21 15:52 -0400
            Re: why "int s = setjmp(env)" fails? supercat@casperkitty.com - 2015-09-22 11:51 -0700
        Re: why "int s = setjmp(env)" fails? Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-26 17:06 -0700
        Re: why "int s = setjmp(env)" fails? Paul N <gw7rib@aol.com> - 2015-09-28 14:28 -0700
  Re: why "int s = setjmp(env)" fails? Keith Thompson <kst-u@mib.org> - 2015-09-20 07:33 -0700
  Re: why "int s = setjmp(env)" fails? James Kuyper <jameskuyper@verizon.net> - 2015-09-20 11:11 -0400

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