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Subject: Re: How to get rid of remarks of the intel compiler

Author: Dieter Buerssner

Date: 13:01:34 01/08/03

Go up one level in this thread


On January 08, 2003 at 15:45:27, Robert Hyatt wrote:

>On January 07, 2003 at 09:16:21, Uri Blass wrote:
>
>>2)I get a lot of remarks for movei and the most popular remark is
>>
>>external definition with no prior declaration
>>
>>Do I need to declare function before I use it.
>
>Yes you must.

Hmmm - I don't see this. Can you cite a part of the C Standard, that shows, that
you really "must"?

>>5)operands are evaluated in unspecified order
>>
>>It is not my fault that the intel compiler does not know that the order of
>>adding is not important because it does not know that calculating one expression
>>does not change the second expression.
>>
>>Uri
>
>The order _is_ specific.  That usually means you are mixing operators of
>difference
>precedence without using () to specify your chosen order of evaluation.  Just
>add
>the parens to avoid some _ugly_ errors...

The order, in which different terms are evaluated in aritmetic expressions is
typically _not_ specific in C. Mixing operators of _different_ precedence
without () is no problem at all. Normally, one would not want to write

w = ((x*y) + z);

instead of

w = x*y + z;

which is guaranteed to mean the same thing in C.

Regards,
Dieter



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