Re: [pgsql-hackers-win32] snprintf causes regression tests

Nicolai Tufar wrote:
> On Tue, 1 Mar 2005 00:55:20 -0500 (EST), Bruce Momjian
> > My next guess
> > is that Win32 isn't handling va_arg(..., long long int) properly.
> >
>
> I am trying various combination of number and types
> of parameters in my test program and everything prints fine.
> When it comes to pg, it fails :(
>
> > > template1=# select * from test where x > 1000::int8;
> > > x
> > > ------------
> > > -869367531
> > > (1 row)
>
> I am not too fluent in source code, could someone
> point me to there actual call to snprintf() is being done
> when a query like this is executed. I could not find it myslef

Sure, in src/backend/utils/adt/int8.c, there is a call in int8out():

if ((len = snprintf(buf, MAXINT8LEN, INT64_FORMAT, val)) < 0)

and that calls port/snprintf.c.

I have added a puts() in snprintf.c to make sure it is getting the
long/long specifier.

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