Hi Dmitry,
Pekka J Enberg <[email protected]> wrote:
> Fair enough, "static const int" would work here too. Defines should be
> avoided because they allow you to override a value without ever noticing it.
Dmitry Torokhov writes:
Would not this cause compiler to allocate memory for the constant?
I suppose if GCC is really good it could eliminate allocation since
nothing takes its address, but I am not sure.
With #define you can be sure that it is just a constant expression.
Constant propagation pass will eliminate the allocation. I checked GCC 3.3.5
and does this with -O1.
Pekka
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