Rémi Zara írta:
> Le 17 févr. 2010 à 12:18, Boszormenyi Zoltan a écrit :
>   
>> Is this buildfarm member for detecting bugs in the already
>> obsolete NetBSD 5.0 BETA, or what? The final 5.0 and
>> two bugfix releases are already out for a while. The owner
>> of that particular machine should upgrade. 
>>     
>
>
> I upgraded pika to NetBSD 5.0.2,

Thanks very much for that.

>  and the problem is still there.
>   

:-(

> There are some tests (in "core") which tests for NaN and Infinity, which 
> pass. So either those tests are insufficient, or the code does something 
> different there.
> Anything you want me to try ?
>   

Here's the attached test code. Compile it with

gcc -Wall -o nantest nantest.c -lm

and run it. It tests NAN anf INFINITY values with isinf() and isnan().
The expected output is:

==================
$ ./nantest
computed NAN
1 0
computed INFINITY
0 1
==================

Instead of "computed", NetBSD/x86-64 prints "defined"
but the test results are the same as under Linux/x86-64.

Best regards,
Zoltán Böszörményi

-- 
Bible has answers for everything. Proof:
"But let your communication be, Yea, yea; Nay, nay: for whatsoever is more
than these cometh of evil." (Matthew 5:37) - basics of digital technology.
"May your kingdom come" - superficial description of plate tectonics

----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
http://www.postgresql.at/

#include <math.h>
#include <float.h>
#include <stdio.h>

static double
get_float8_nan(void)
{
#ifdef NAN
	printf("defined NAN\n");
	return (double) NAN;
#else
	printf("computed NAN\n");
	return (double) (0.0 / 0.0);
#endif
}

static double
get_float8_infinity(void)
{
#ifdef INFINITY
	printf("defined INFINITY\n");
	return (double) INFINITY;
#else
	printf("computed INFINITY\n");
	return (double) (HUGE_VAL * HUGE_VAL);
#endif
}

int main(void) {
	double	d;
	d = get_float8_nan();
	printf("%d %d\n", isnan(d), isinf(d));
	d = get_float8_infinity();
	printf("%d %d\n", isnan(d), isinf(d));
	return 0;
}

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