Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!pilchuck!dataio!bright
From: bright@Data-IO.COM (Walter Bright)
Newsgroups: comp.lang.c++
Subject: Re: C++ comparison
Message-ID: <2683@dataio.Data-IO.COM>
Date: 5 Sep 90 18:11:26 GMT
References: <1990Aug29.161622.12404@persoft.com> <06RXo1w161w@burklabs>
Organization: Data I/O Corporation; Redmond, WA
Lines: 33

In article <06RXo1w161w@burklabs> ronb@burklabs (Ron Burk       ) writes:
<An important drawback of Zortech which I haven't seen mentioned is that ZTC
<misses significant error checks that TCC catches.  For example, ZTC often
<does not detect that a function that should return a value does not.

It does not do this deliberately, a lot of C code exists that is written
like:
	func()
	{ .... }
instead of:
	void func()
	{ .... }

<It also does not detect unused variables or function parameters by default.

This is also deliberate because:
1. The optimizer frequently removes all uses of a variable, this can cause
annoying spurious error messages. An example is when a loop index is replaced
by a pointer.
2. I frequently write code like:
	void func(int i,int j)
	{
		/* fill in the body later	*/
	}
and don't want to be annoyed by a blizzard of messages.
3. I have several
programs which call a function pointer pulled out of a table. By
necessity, all the functions in the table have the same parameters, but
probably most of the implementations of the functions leave some of the
parameters unused.

I'd say that these are differences of opinion between us, and are not
necessarilly bugs.