//! Swap operator
void swap(wt_int_rlmn& wt) {
if (this != &wt) {
std::swap(m_size, wt.m_size);
m_bl.swap(wt.m_bl);
m_bf.swap(wt.m_bf);
m_wt.swap(wt.m_wt);
m_bl_rank.swap(wt.m_bl_rank);
m_bl_rank.set_vector(&m_bl);
wt.m_bl_rank.set_vector(&(wt.m_bl));
m_bf_rank.swap(wt.m_bf_rank);
m_bf_rank.set_vector(&m_bf);
wt.m_bf_rank.set_vector(&(wt.m_bf));
m_bl_select.swap(wt.m_bl_select);
m_bl_select.set_vector(&m_bl);
wt.m_bl_select.set_vector(&(wt.m_bl));
m_bf_select.swap(wt.m_bf_select);
m_bf_select.set_vector(&m_bf);
wt.m_bf_select.set_vector(&(wt.m_bf));
m_C.swap(wt.m_C);
m_C_bf_rank.swap(wt.m_C_bf_rank);
}
}
/*!
* \param i The ith occurrence. \f$i\in [1..rank(size(),c)]\f$.
* \param c The symbol c.
* \par Time complexity
* \f$ \Order{H_0} \f$ on average, where \f$ H_0 \f$ is the zero order
* entropy of the sequence
*/
size_type select(size_type i, value_type c)const {
assert(i > 0);
assert(i <= rank(size(), c));
size_type c_runs = m_bf_rank(m_C[c]+i) - m_C_bf_rank[c];
size_type offset = m_C[c] + i - 1 - m_bf_select(c_runs + m_C_bf_rank[c]);
return m_bl_select(m_wt.select(c_runs, c)+1) + offset;
};
//! Swap operation
void swap(matching_index& idx)
{
if (this != &idx) {
m_text.swap(idx.m_text);
m_wt.swap(idx.m_wt);
}
}
//! Serializes the data structure into the given ostream
size_type serialize(std::ostream& out, sdsl::structure_tree_node* v=nullptr, std::string name="")const
{
sdsl::structure_tree_node* child = sdsl::structure_tree::add_child(v, name, sdsl::util::class_name(*this));
size_type written_bytes = 0;
written_bytes += m_text.serialize(out, child, "text");
written_bytes += m_wt.serialize(out, child, "wt");
sdsl::structure_tree::add_size(child, written_bytes);
return written_bytes;
}
//! Loads the data structure from the given istream.
void load(std::istream& in) {
read_member(m_size, in);
m_bl.load(in);
m_bf.load(in);
m_wt.load(in);
m_bl_rank.load(in, &m_bl);
m_bf_rank.load(in, &m_bf);
m_bl_select.load(in, &m_bl);
m_bf_select.load(in, &m_bf);
m_C.load(in);
m_C_bf_rank.load(in);
}
/*!
* \param i The exclusive index of the prefix range [0..i-1], so \f$i\in[0..size()]\f$.
* \param c The symbol to count the occurrences in the prefix.
* \return The number of occurrences of symbol c in the prefix [0..i-1] of the supported vector.
* \par Time complexity
* \f$ \Order{H_0} \f$ on average, where \f$ H_0 \f$ is the zero order entropy of
* the sequence
*/
size_type rank(size_type i, value_type c)const {
assert(i <= size());
if (i == 0)
return 0;
size_type wt_ex_pos = m_bl_rank(i);
size_type c_runs = m_wt.rank(wt_ex_pos, c);
if (c_runs == 0)
return 0;
if (m_wt[wt_ex_pos-1] == c) {
size_type c_run_begin = m_bl_select(wt_ex_pos);
return m_bf_select(m_C_bf_rank[c] + c_runs) - m_C[c] + i - c_run_begin;
} else {
return m_bf_select(m_C_bf_rank[c] + c_runs + 1) - m_C[c];
}
};
//! Serializes the data structure into the given ostream
size_type serialize(std::ostream& out, structure_tree_node* v=nullptr, std::string name="")const {
structure_tree_node* child = structure_tree::add_child(v, name, util::class_name(*this));
size_type written_bytes = 0;
written_bytes += write_member(m_size, out, child, "size");
written_bytes += m_bl.serialize(out, child, "bl");
written_bytes += m_bf.serialize(out, child, "bf");
written_bytes += m_wt.serialize(out, child, "wt");
written_bytes += m_bl_rank.serialize(out, child, "bl_rank");
written_bytes += m_bf_rank.serialize(out, child, "bf_rank");
written_bytes += m_bl_select.serialize(out, child, "bl_select");
written_bytes += m_bf_select.serialize(out, child, "bf_select");
written_bytes += m_C.serialize(out, child, "C");
written_bytes += m_C_bf_rank.serialize(out, child, "C_bf_rank");
structure_tree::add_size(child, written_bytes);
return written_bytes;
}
/*!
* \param i The index of the symbol.
* \param c Reference that will contain the symbol at position i after the execution of the method.
* \return The number of occurrences of symbol wt[i] in the prefix [0..i-1]
* \par Time complexity
* \f$ \Order{H_0} \f$
*/
size_type inverse_select(size_type i, value_type& c)const {
assert(i < size());
if (i == 0) {
c = m_wt[0];
return 0;
}
size_type wt_ex_pos = m_bl_rank(i+1);
size_type c_runs = m_wt.inverse_select(wt_ex_pos-1, c)+1;
if (c_runs == 0)
return 0;
if (m_wt[wt_ex_pos-1] == c) {
size_type c_run_begin = m_bl_select(wt_ex_pos);
return m_bf_select(m_C_bf_rank[c] + c_runs) - m_C[c] + i - c_run_begin;
} else {
return m_bf_select(m_C_bf_rank[c] + c_runs + 1) - m_C[c];
}
}
//! Loads the data structure from the given istream.
void load(std::istream& in)
{
m_text.load(in);
m_wt.load(in);
}
