-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi All,

	I just came across a bug in NetBSD 3.0 amd64 port. It may have
already been fixed in current, but I was unable to test this. The
problem is with the ldexp() function. It seems to just return the
value of the float value provided without multiplying it by 2
^ exp as expected. Note: It works fine with the i386 port.

A small test program:

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
   for (float f = 0.0f; f < 2.1; f += 0.5f)
   {
      for (int exp = 0; exp < 5; exp++)
      {
         float result = ldexp(f, exp);
         cout << f << " * 2 ^ " << exp << " = " << result << endl;
      }
   }
   return 0;
}

prints the result (on amd64 port):

0 * 2 ^ 0 = 0
0 * 2 ^ 1 = 0
0 * 2 ^ 2 = 0
0 * 2 ^ 3 = 0
0 * 2 ^ 4 = 0
0.5 * 2 ^ 0 = 0.5
0.5 * 2 ^ 1 = 0.5
0.5 * 2 ^ 2 = 0.5
0.5 * 2 ^ 3 = 0.5
0.5 * 2 ^ 4 = 0.5
1 * 2 ^ 0 = 1
1 * 2 ^ 1 = 1
1 * 2 ^ 2 = 1
1 * 2 ^ 3 = 1
1 * 2 ^ 4 = 1
1.5 * 2 ^ 0 = 1.5
1.5 * 2 ^ 1 = 1.5
1.5 * 2 ^ 2 = 1.5
1.5 * 2 ^ 3 = 1.5
1.5 * 2 ^ 4 = 1.5
2 * 2 ^ 0 = 2
2 * 2 ^ 1 = 2
2 * 2 ^ 2 = 2
2 * 2 ^ 3 = 2
2 * 2 ^ 4 = 2

Where it should look like (on i386):
0 * 2 ^ 0 = 0
0 * 2 ^ 1 = 0
0 * 2 ^ 2 = 0
0 * 2 ^ 3 = 0
0 * 2 ^ 4 = 0
0.5 * 2 ^ 0 = 0.5
0.5 * 2 ^ 1 = 1
0.5 * 2 ^ 2 = 2
0.5 * 2 ^ 3 = 4
0.5 * 2 ^ 4 = 8
1 * 2 ^ 0 = 1
1 * 2 ^ 1 = 2
1 * 2 ^ 2 = 4
1 * 2 ^ 3 = 8
1 * 2 ^ 4 = 16
1.5 * 2 ^ 0 = 1.5
1.5 * 2 ^ 1 = 3
1.5 * 2 ^ 2 = 6
1.5 * 2 ^ 3 = 12
1.5 * 2 ^ 4 = 24
2 * 2 ^ 0 = 2
2 * 2 ^ 1 = 4
2 * 2 ^ 2 = 8
2 * 2 ^ 3 = 16
2 * 2 ^ 4 = 32


Thanks,
Brendon.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFEHyqUPfREiUgoLqwRAnmCAKDmCZpLObvgCsfkpzvj+hsoezIaaACfRynJ
VLB2GGqv34noOickP20p8A0=
=N1rd
-----END PGP SIGNATURE-----