static int get_decimal_str(ipint_t *s, char **str, char **start){
int i;
int nchars=((s->used-1)*DATA_WIDTH+get_num_bits(s,s->used-1))/3.32192809488736234787031+3; // log2(s)/log2(10)
ipint_t q;
ipint_t r;
ipint_t d;
ipint_t end;
ipint_t temp;
ipdata_t di=10,endi=9;
char *ptr;
ptr=malloc(nchars);
if(ptr==NULL)
return IPECAC_ERROR;
ipecac_init(&temp,0);
ipecac_init(&q,0);
ipecac_init(&r,0); // Can we fake this?
ipecac_clone(&temp,s);
d.sign=SIGN_POS;
d.allocated=1;
d.data=&di;
d.used=1;
end.sign=SIGN_POS;
end.allocated=1;
end.data=&endi;
end.used=1;
i=nchars;
ptr[--i]=0;
do{
ipecac_div(&q,&r,&temp,&d);
ipecac_clone(&temp,&q);
ptr[--i]='0'+r.data[0];
}while(ipecac_cmp(&q,&end)>0);
ptr[--i]='0'+q.data[0];
*start=ptr+i;
while(i>0)ptr[--i]='0';
*str=ptr;
return IPECAC_SUCCESS;
}
void udoc_relation::expand_column_vector(unsigned_vector& v, const udoc_relation* other) const {
unsigned_vector orig;
orig.swap(v);
for (unsigned i = 0; i < orig.size(); ++i) {
unsigned col, limit;
if (orig[i] < get_num_cols()) {
col = column_idx(orig[i]);
limit = col + column_num_bits(orig[i]);
} else {
unsigned idx = orig[i] - get_num_cols();
col = get_num_bits() + other->column_idx(idx);
limit = col + other->column_num_bits(idx);
}
for (; col < limit; ++col) {
v.push_back(col);
}
}
}
int num_transitions_to_change_max(int from, int to)
{
int to_switch_off = from & (~to);
int to_switch_on = to & (~from);
return get_num_bits(to_switch_off) + get_num_bits(to_switch_on);
}
int num_transitions_to_change_sam(int from, int to)
{
return get_num_bits(from) + get_num_bits(to);
}