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Re: ZeroLink: Perhaps better disabled per default?
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Re: ZeroLink: Perhaps better disabled per default?


  • Subject: Re: ZeroLink: Perhaps better disabled per default?
  • From: Marshall Clow <email@hidden>
  • Date: Thu, 13 Oct 2005 21:53:15 -0700

At 2:41 AM +0200 10/14/05, Andreas Grosam wrote:
While I fully agree with j o a r, I would like to mention, that this code snippet will compile without errors:

// file: foo.c

extern void bar();		// prototype

void foo()  {
	boar();  	// typo
}

Don't expect errors when compiling with a C compiler. It even will not complain when the -pedantic or -Wmissing-prototypes flags are on.
This is because it is completely valid and legal code.
Sure, it won't link.

This may be true with gcc, but I have used C compilers (since the early 1990s) that would complain if they saw a routine that they had not previously seen a declaration or prototype for. (This behavior was controlled by a compiler switch, usually called "Require function prototypes" or something similar.)


This was not a CodeWarrior-ism, it predates CodeWarrior.
--
-- Marshall

Marshall Clow     Idio Software   <mailto:email@hidden>

It is by caffeine alone I set my mind in motion.
It is by the beans of Java that thoughts acquire speed,
the hands acquire shaking, the shaking becomes a warning.
It is by caffeine alone I set my mind in motion.
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  • Follow-Ups:
    • Re: ZeroLink: Perhaps better disabled per default?
      • From: Eric Albert <email@hidden>
    • Re: ZeroLink: Perhaps better disabled per default?
      • From: Andreas Grosam <email@hidden>
References: 
 >No compile errors for unknown functions? (From: Ando Sonenblick <email@hidden>)
 >Re: No compile errors for unknown functions? (From: Chris Espinosa <email@hidden>)
 >ZeroLink: Perhaps better disabled per default? (From: j o a r <email@hidden>)
 >Re: ZeroLink: Perhaps better disabled per default? (From: Scott Tooker <email@hidden>)
 >Re: ZeroLink: Perhaps better disabled per default? (From: Andreas Grosam <email@hidden>)

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