[Bug c++/37800] decrementation problem - different result in similar situations

["terrix at wp dot pl" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #2 from terrix at wp dot pl  2008-10-10 16:57 -------
i'm not really sure why there maight be a difference in incrementation behavior
between:

        foo(++p, p);

and
        foo(++p, p - 1); 

looking at the code it is obvious that '++p' is a first operation and the 'p'
or in second example a 'p-1' is a second operation. both operations are done
before call to a foo. isn't it?

so why behaviour of second example is that 'p-1' is executed first and than
'++p'?

note that in other compillers (m$vc), not mentioning other languages (java),
behavious of exampled code is obvious and clear.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37800