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Article View: comp.std.c
Article #3081

Re: type compatibility

#3081
From: Norman Diamond
Date: Wed, 29 May 1991 02:25
35 lines
1774 bytes
In article <1991May15.205506.24139@athena.mit.edu> tada@athena.mit.edu (Michael J Zehr) writes:
>suppose you have file1.c:
>  typedef Name char[10];
>and file2.c:
>  typedef Name char[10];
>is this technically correct (i.e. ansi conforming)?  it works correctly
>on my compiler, however my version of lint (lintplus from IPT for VMS)
>complains that something is supposed to take an array argument and it's
>getting a pointer argument.

You should get error messages for that typedef syntax.
However, C has no such thing as an array argument, and your version
of lint doesn't seem to be for the C language.

If you have file1.c:

   typedef char Name[10];
>  void something(Name x);
>  void foo(void) {
>    Name x;
>    something(x);
>  }

and file2.c:

   typedef char Name[10];
>  void something(Name x) {
>  }

then it is impeccable ANSI C.  something is supposed to take a pointer
argument, and gets one.
--
Norman Diamond       diamond@tkov50.enet.dec.com
If this were the company's opinion, I wouldn't be allowed to post it.
Permission is granted to feel this signature, but not to look at it.
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References: <1991May15.205506.24139@athena.mit.edu>

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From: diamond@jit533.swstokyo.dec.com (Norman Diamond)
Newsgroups: comp.std.c
Subject: Re: type compatibility
Message-ID: <1991May29.022544.13579@tkou02.enet.dec.com>
Date: 29 May 91 02:25:44 GMT
References: <1991May15.205506.24139@athena.mit.edu>
Sender: usenet@tkou02.enet.dec.com (USENET News System)
Reply-To: diamond@jit533.enet@tkou02.enet.dec.com (Norman Diamond)
Organization: Digital Equipment Corporation Japan , Tokyo
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