[Liboil] bug in oil_sum_f64() ?

[John Cupitt]

Hi all,

I'm playing with using liboil to speed up our image processing
library: http://www.vips.ecs.soton.ac.uk . I'm getting strange results
from oil_sum_f64(). This program:

----------
#include <stdio.h>
#include <liboil/liboil.h>

int
main ()
{
  double test[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
  double sum;

  oil_init ();
  oil_sum_f64 (&sum, test, 1, 10);
  printf ("sum = %g\n", sum);

  return (0);
}
-------------

prints

  sum = -3.10504e+231

on my machine:

john at banana:~/try$ uname -a
Linux banana 2.6.17-10-386 #2 Tue Dec 5 22:26:18 UTC 2006 i686 GNU/Linux
john at banana:~/try$ pkg-config --modversion liboil-0.3
0.3.10
john at banana:~/try$ gcc --version
gcc (GCC) 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)

Have I misread the docs? Or is there a bug somewhere?

John