Re: passing constants by pointer

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Article #49517

#49517

From: Dean Herington
Date: Thu, 20 Jan 1994 15:06

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In article <rbp-190194215745@tonto-slip5.cis.brown.edu> rbp@brown.edu (bob pasker) writes:

   i have created the following workaround:

   #define BYREF(c) ({int _bar=c; &_bar;})

		   foo(BYREF(1));

   :-(

   luckily GNU cc allows these kind of "statements within expressions."

Yes, "statements within expressions" are supported, but in your
example above aren't you passing to foo the address of a local
variable that has already expired?  I doubt this is guaranteed to
work.

--
Dean Herington			internet: hering@dg-rtp.dg.com
Data General Corporation	    uucp: ...!uunet!dg-rtp!hering
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References: <rbp-190194182522@tonto-slip13.cis.brown.edu> <rbp-190194215745@tonto-slip5.cis.brown.edu>

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From: hering@rtp.dg.com (Dean Herington)
Subject: Re: passing constants by pointer
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In-Reply-To: rbp@brown.edu's message of Wed, 19 Jan 1994 21:57:45 -0500
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To: rbp@brown.edu (bob pasker)
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 <rbp-190194215745@tonto-slip5.cis.brown.edu>
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