passing constants by pointer

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Article #49511

#49511

From: bob pasker
Date: Thu, 20 Jan 1994 02:25

20 lines
1305 bytes

my  VAX C compiler allows me to pass a constant by reference as follows:

               foo(&1)

but GCC gives me an "invalid lvalue". 

does anyone know the proper incantation?

[i understand the inherent stupidity in this, but some VMS library routines
want integers by ref, even though they are not going to be modified by the
caller. i'm porting a whole bunch of code, and doing  bar = 1; foo(&bar)
would be quite tedious.]

many thanks.

-- 
-- bob pasker
-- brown u., dept. of history
-- rbp@brown.edu
--

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From: rbp@brown.edu (bob pasker)
Newsgroups: gnu.gcc.help
Subject: passing constants by pointer
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Date: Wed, 19 Jan 1994 18:25:22 -0800
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