How do I choose the correct primative?

[Jake Thomas]

On Friday, 3 January 2014 at 05:25:49 UTC, Casper Færgemand wrote:
> On Wednesday, 1 January 2014 at 04:17:30 UTC, Jake Thomas wrote:
>> snip
> Are you looking for something like int_fast32_t and the likes 
> from Boost? If you don't care terribly much for when your 
> numbers overflow, then as others suggested, size_t and 
> pttwhatever work fine.

I had never heard of int_fast32_t before, but after Googling and 
finding out what it is, yes, I am looking for just exactly that.