libm-i387 bug?

[Zack Weinberg]

This test program prints "-1.949464 0.000000". Shouldn't it print
"0.000000 1.000000" ?

zw

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

int main(void)
{
  printf("%f %f", fdim(2.0, 3.0), fdim(3.0, 2.0));
  return 0;
}