Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!lotus!blambert
From: blambert@lotus.com (Brian Lambert)
Newsgroups: comp.lang.c
Subject: VAX C Doesn't care about prototypes.
Message-ID: <1990Jul20.154446.9992@lotus.com>
Date: 20 Jul 90 15:44:46 GMT
Reply-To: blambert@lotus.UUCP (Brian Lambert)
Organization: Lotus Development Corp.
Lines: 29

Hi:
 
I am using VAX C (latest version, 3.something) and I ran into this weird problemthe other day.  As it turns out, the following code does not generate a 
compilation warning:

typedef struct { long foo; } A;
typedef struct { short foo, bar; } B;

void x(B *b);

main()  
{
    A a;
    B b; 
    x(&a); /* does not generate a warning */ 
    x(&b);
    ...

This same code generated a compiler warning using -W1 in MSC 6.0.  The manual
says that since the arguments are "assignment compatible" an automatic 
conversion is provided.  I don't want this - is there a way to disable this
less-than-useful functionality?  

Thanks,

brian lambert

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