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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// SPDX-FileCopyrightText: 2020 - 2025 Kohei Yoshida
//
// SPDX-License-Identifier: MIT
#include <mdds/global.hpp> // for MDDS_ASCII and MDDS_N_ELEMENTS
#include <mdds/trie_map.hpp>
#include <iostream>
int main()
{
//!code-start: type
using trie_map_type = mdds::packed_trie_map<std::string, int>;
//!code-end: type
// Entries must be known prior to creating the instance, and they must be
// sorted by the key in ascending order.
//!code-start: populate
trie_map_type::entry entries[] =
{
{ MDDS_ASCII("Apex"), 42214 },
{ MDDS_ASCII("Asheville"), 87236 },
{ MDDS_ASCII("Burlington"), 51510 },
{ MDDS_ASCII("Cary"), 151088 },
{ MDDS_ASCII("Chapel Hill"), 59635 },
{ MDDS_ASCII("Charlotte"), 792862 },
{ MDDS_ASCII("Concord"), 83506 },
{ MDDS_ASCII("Durham"), 245475 },
{ MDDS_ASCII("Fayetteville"), 204408 },
{ MDDS_ASCII("Gastonia"), 73209 },
{ MDDS_ASCII("Goldsboro"), 36306 },
{ MDDS_ASCII("Greensboro"), 279639 },
{ MDDS_ASCII("Greenville"), 89130 },
{ MDDS_ASCII("Hickory"), 40361 },
{ MDDS_ASCII("High Point"), 107741 },
{ MDDS_ASCII("Huntersville"), 50458 },
{ MDDS_ASCII("Jacksonville"), 69079 },
{ MDDS_ASCII("Kannapolis"), 44359 },
{ MDDS_ASCII("Raleigh"), 431746 },
{ MDDS_ASCII("Rocky Mount"), 56954 },
{ MDDS_ASCII("Wilmington"), 112067 },
{ MDDS_ASCII("Wilson"), 49628 },
{ MDDS_ASCII("Winston-Salem"), 236441 },
};
//!code-end: populate
// Cities in North Carolina and their populations in 2013.
//!code-start: inst
trie_map_type nc_cities(entries, std::size(entries));
//!code-end: inst
std::cout << "Cities that start with 'Cha' and their populations:" << std::endl;
auto results = nc_cities.prefix_search("Cha");
for (const auto& kv : results)
{
std::cout << " " << kv.first << ": " << kv.second << std::endl;
}
std::cout << "Cities that start with 'W' and their populations:" << std::endl;
results = nc_cities.prefix_search("W");
for (const auto& kv : results)
{
std::cout << " " << kv.first << ": " << kv.second << std::endl;
}
std::cout << "Cities that start with 'C' and their populations:" << std::endl;
results = nc_cities.prefix_search("C");
for (const auto& kv : results)
{
std::cout << " " << kv.first << ": " << kv.second << std::endl;
}
// Individual search.
auto it = nc_cities.find("Wilmington");
std::cout << "Population of Wilmington: " << it->second << std::endl;
// You get an end position iterator when the container doesn't have the
// specified key.
it = nc_cities.find("Asheboro");
std::cout << "Population of Asheboro: ";
if (it == nc_cities.end())
std::cout << "not found";
else
std::cout << it->second;
std::cout << std::endl;
return EXIT_SUCCESS;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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