pointer post-incr problem with GCC 3.3.3 ??

[Falk Hueffner]

Falk Hueffner <hueffner@informatik.uni-tuebingen.de> writes:

> Graham Stott <graham.stott@btinternet.com> writes:
>
>>>           *(ptr++) = toupper(*ptr);
>>> 
>>>   I would assert these two code frags are functionally identical.
>>>
>> Nope your assertion is wrong.
>>
>> Read up on "sequence points" and you'll undersrand why. 
>
> I don't see this. Can you please explain in detail where the violation
> is?

Actually, I think I see it now. "ptr" has its value read before the
modification of "ptr", without an intervening sequence point, and not
only to determine the value to be stored in "ptr".

-- 
	Falk