int main(int argc, char **argv) {
srand (16);
int i;
for(i = 0; i < 16; ++i) {
int a = rand();
int b = rand();
printf("%x > %x -> result:%d\n", a, b, op_ne(a, b));
}
return 0;
}
void PPNEQGeneralComparison::do_next (xqp_tuple &t)
{
if (first_time)
{
first_time = false;
if (!eos_reached1) seq1.op->reopen();
if (!eos_reached2) seq2.op->reopen();
eos_reached2 = false;
eos_reached1 = false;
xqp_tuple cont1(seq1.ts);
xqp_tuple cont2(seq2.ts);
xqp_tuple * cont[2]={&cont1,&cont2};
PPOpIn * seq[2]={&seq1,&seq2};
bool seq_end[2]={false,false};
bool two_diffs_exist[2]={false,false};
bool uv_exist[2]={false,false};
bool switcher=true;
tuple_cell seq_str_val[2];
seq[0]->op->next(*cont[0]);
if ((*cont[0]).is_eos())
{
eos_reached1 = true;
t.copy(tuple_cell::atomic(false));
return;
}
seq[1]->op->next(*cont[1]);
if ((*cont[1]).is_eos())
{
eos_reached2 = true;
t.copy(tuple_cell::atomic(false));
return;
}
tuple_cell res[2];
res[0]=getAtomizedCell(*cont[0]);
if (res[0].get_atomic_type()==xs_untypedAtomic)
{
seq_str_val[0]=res[0];
uv_exist[0]=true;
}
res[1]=getAtomizedCell(*cont[1]);
if (res[1].get_atomic_type()==xs_untypedAtomic)
{
seq_str_val[1]=res[1];
uv_exist[1]=true;
}
generalNodePrepare(res[0],res[1]);
if (op_ne(res[0],res[1],handler).get_xs_boolean())
{
t.copy(tuple_cell::atomic(true));
return;
}
int pr=0;
while(true)
{
(switcher)?pr=0:pr=1;
switcher=!switcher;
if (!seq_end[pr] )
{
seq[pr]->op->next(*cont[pr]);
if (cont[pr]->is_eos())
{
(pr==0)? eos_reached1 = true: eos_reached2 = true;
seq_end[pr]=true;
if (seq_end[1-pr])
{
t.copy(tuple_cell::atomic(false));
return;
}
}
else
{
res[pr]=getAtomizedCell(*cont[pr]);
if (res[pr].get_atomic_type()==xs_untypedAtomic)
{
if (!uv_exist[pr])
{
seq_str_val[pr]=res[pr];
uv_exist[pr]=true;
}
else
{
if (op_ne(cast(seq_str_val[pr], xs_string),cast(res[pr], xs_string),handler).get_xs_boolean())
two_diffs_exist[pr]=true;
}
if (
(two_diffs_exist[pr]&& uv_exist[1-pr])||
(two_diffs_exist[1-pr]&& uv_exist[pr])
)
{
t.copy(tuple_cell::atomic(true));
return;
}
if (uv_exist[1-pr])
{
if (op_ne(cast(seq_str_val[pr], xs_string),cast(seq_str_val[1-pr], xs_string),handler).get_xs_boolean())
{
t.copy(tuple_cell::atomic(true));
return;
}
}
}
generalNodePrepare(res[0],res[1]);
if (op_ne(res[0],res[1],handler).get_xs_boolean())
{
t.copy(tuple_cell::atomic(true));
return;
}
}
}
}
}
else
{
first_time = true;
t.set_eos();
}
}
