On Wed, Nov 17, 2004 at 04:13:04PM -0800 Ed Wright wrote:
> You should consider checking if declaring variables as 'register' helps
> runtime performance. It seems recent compilers have evolved to the
> stage that 'register' provides no particular advantage.
That could easily be. I was never able to come up with a benchmark that
would confirm a benefit of 'register'.
But then it doesn't hurt either. It's certainly one of the cheapest
optimizations. :-)
And as 'register' has become a habit for me over the years, there's one
subjective reason why I'll probably stick with it: I only mark variables
as register when they are accessed and possibly altered frequently in a
function. In that they have a certain documentary value to me. I
instantly see that this variable is probably meant to be a counter or
loop variable.
Tassilo
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