Re: [HACKERS] threads stuff/UnixWare

--On Thursday, May 13, 2004 21:14:40 -0400 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
wrote:

> Larry Rosenman <ler(at)lerctr(dot)org> writes:
>>> Does Unixware support NaN/Infinity at all?
>
>> Yes, we support NaN's and Inf.
>
> Hmph. Apparently their strtod() has thought of some original new way to
> misbehave on those inputs. Would you mind tracing through float4in() or
> float8in() to see exactly how it manages to fail?
>
> regards, tom lane

I ran a quick C test:

cc -O -o test3 test3.c
$ ./test3
num=nan
errno=0
$ cat test3.c
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
int main(int argc,char **argv)
{
double num;
char *input="NaN";
char **ptr;

num=strtod(input,ptr);
printf("num=%g\n",num);
printf("errno=%ld\n",errno);
exit(0);
}

So, how's the easiest way to trace PG's float4in stuff?

--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: ler(at)lerctr(dot)org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749