On 10/28/2014 03:24 PM, Andres Freund wrote:
On 2014-10-28 11:05:11 -0200, Arthur Silva wrote:
On Sat, Oct 25, 2014 at 12:38 PM, Andreas Karlsson <andr...@proxel.se>
As far as I'm aware int128 types are supported on every major compiler when
compiling for 64bit platforms. Right?
Depends on what you call major. IIRC some not that old msvc versions
don't for example. Also, there's a couple 32 platforms with int128 bit
support. So I think we should just add a configure test defining the
type + a feature macro.
It wouldn't be too hard to just do:
struct {
int64 high_bits;
uint64 low_bits;
} pg_int128;
and some macros for the + - etc. operators. It might be less work than
trying to deal with the portability issues of a native C datatype for this.
- Heikki
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