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In article <fsinrj$140r$1@xxxxxxxxxxxxxxxxxxx>,
Ioannis Vranos <ivranos@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>K&R2 mentions the following:
>
>"printf("%d %d\n", ++n, power(2,n)); /* WRONG */
>
>can produce different results with different compilers, depending on
>whether n is incremented before power is called".
>
>
>That's why I call it implementation-defined behaviour.
It's undefined behaviour, and therefore implementation dependent, but
"implementation defined" means that the implementation specifies (in
its documentation) what it does. The standard contains a list of the
behaviours that the implementation must specify, but this isn't one of
them.
-- Richard
--
:wq
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