Re: [LAD] Integer performance

On Sat, 02 May 2015 21:06:40 +0200
Clemens Ladisch <clemens@email-addr-hidden> wrote:

> Will Godfrey wrote:
> > If you are using only small values is there really any benefit in using chars
> > and shorts rather than just using integers everywhere and letting the compiler
> > sort it out?
>
> That depends on the CPU architecture.

I thought someone might say that :p

> Which is why <stdint.h> defines types like int16_fast_t.
>
> > Also, would bool actually have an extra cost due to masking needs?
>
> What masking?

Presumably bits have to be masked when being set or read to provide the boolean
action. I wouldn't expect true single bit direct storage to be available.

-- 
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
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