Hi list,[iem_sqrt4~] crashes when trying to create on amd_64. It creates fine
on 32 bit linux.
This leads me to believe there is something in the setup routine that makes an
assumption that only holds true for a 32bit OS.
The only thing that stands out to me is a function called in the setup routine,
posted below. This looks particularly suspicious to my untrained eye:
*(long *)(&f) = l;Even if that's not causing the crash, what does it do?
And does that or anything stand out to anyone else?
Thanks,Jonathan
static void iem_sqrt4_tilde_maketable(void)
{
int i;
t_float f;
long l;
if(!iem_sqrt4_tilde_exptab)
{
iem_sqrt4_tilde_exptab = (t_float *)getbytes(sizeof(t_float) *
IEMSQRT4TAB1SIZE);
for(i=0; i<IEMSQRT4TAB1SIZE; i++)
{
l = (i ? (i == IEMSQRT4TAB1SIZE-1 ? IEMSQRT4TAB1SIZE-2 : i) : 1)<< 23;
*(long *)(&f) = l;
iem_sqrt4_tilde_exptab[i] = 1.0f/sqrt(f);
}
}
if(!iem_sqrt4_tilde_mantissatab)
{
iem_sqrt4_tilde_mantissatab = (t_float *)getbytes(sizeof(t_float) *
IEMSQRT4TAB2SIZE);
for(i=0; i<IEMSQRT4TAB2SIZE; i++)
{
f = 1.0f + (1.0f/(t_float)IEMSQRT4TAB2SIZE) * (t_float)i;
iem_sqrt4_tilde_mantissatab[i] = 1.0f/sqrt(f);
}
}
}
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