Re: pgsql: Fix integer-overflow problems in interval comparison.

On 2017-04-17 13:04:31 -0400, Tom Lane wrote:
> Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> writes:
> > On 4/5/17 23:51, Tom Lane wrote:
> >> Fix integer-overflow problems in interval comparison.
>
> > This is failing cpluspluscheck now because C++ does not have
> > _Static_assert, which is used in int128.h.
>
> Hmm. We could drop that assert, or move it to some .c file, or
> wrap it in "#ifndef __cplusplus" ... but really it seems like a
> more generic solution would be appropriate. This won't be the
> last time somebody tries to do that, what with our increasing
> use of inline functions.
>
> Maybe the definition of StaticAssertStmt should be tweaked based on
> __cplusplus?

That seems reasonable, possibly with a cplusplus version check and then
using static_assert()? Although I'd personally just mention that as a
todo for later.

> Or maybe the problem is cpluspluscheck's test methodology,
> ie you ought to run configure with CC=c++ before trying to compile the
> headers?

That seems unlikely to work well for the moment...

- Andres