forked from boostorg/unordered
4e4f99d51f
And clean of the FNV-1 example & documentation a little. Merged revisions 47085,47132,47143-47146 via svnmerge from https://svn.boost.org/svn/boost/trunk ........ r47085 | danieljames | 2008-07-04 23:57:20 +0100 (Fri, 04 Jul 2008) | 4 lines Require explicit conversion from allocators. (Not what it says in the draft standard, but I think that might be a defect). ........ r47132 | danieljames | 2008-07-06 13:41:09 +0100 (Sun, 06 Jul 2008) | 2 lines 'Bias' should be 'basis'. ........ r47143 | danieljames | 2008-07-06 22:06:52 +0100 (Sun, 06 Jul 2008) | 1 line Clean up the FNV-1 comments. ........ r47144 | danieljames | 2008-07-06 22:07:31 +0100 (Sun, 06 Jul 2008) | 1 line I've only got one hash function for release, so no need for its own directory. ........ r47145 | danieljames | 2008-07-06 22:08:11 +0100 (Sun, 06 Jul 2008) | 1 line Remove the hash_functions directory (for now). ........ r47146 | danieljames | 2008-07-06 22:29:47 +0100 (Sun, 06 Jul 2008) | 1 line Update the docs for the new location of FNV-1. ........ [SVN r47150]
104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
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// Copyright 2006-2007 Daniel James.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/unordered_map.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/algorithm/string/predicate.hpp>
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#include "../../examples/fnv1.hpp"
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//[case_insensitive_functions
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struct iequal_to
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: std::binary_function<std::string, std::string, bool>
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{
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bool operator()(std::string const& x,
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std::string const& y) const
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{
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return boost::algorithm::iequals(x, y, std::locale());
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}
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};
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struct ihash
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: std::unary_function<std::string, std::size_t>
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{
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std::size_t operator()(std::string const& x) const
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{
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std::size_t seed = 0;
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std::locale locale;
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for(std::string::const_iterator it = x.begin();
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it != x.end(); ++it)
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{
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boost::hash_combine(seed, std::toupper(*it, locale));
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}
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return seed;
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}
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};
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//]
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int main() {
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//[case_sensitive_dictionary_fnv
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boost::unordered_map<std::string, int, hash::fnv_1>
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dictionary;
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//]
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BOOST_TEST(dictionary.empty());
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dictionary["one"] = 1;
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BOOST_TEST(dictionary.size() == 1);
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BOOST_TEST(dictionary.find("ONE") == dictionary.end());
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dictionary.insert(std::make_pair("ONE", 2));
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BOOST_TEST(dictionary.size() == 2);
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BOOST_TEST(dictionary.find("ONE") != dictionary.end() &&
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dictionary.find("ONE")->first == "ONE" &&
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dictionary.find("ONE")->second == 2);
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dictionary["One"] = 3;
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BOOST_TEST(dictionary.size() == 3);
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BOOST_TEST(dictionary.find("One") != dictionary.end() &&
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dictionary.find("One")->first == "One" &&
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dictionary.find("One")->second == 3);
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dictionary["two"] = 4;
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BOOST_TEST(dictionary.size() == 4);
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BOOST_TEST(dictionary.find("Two") == dictionary.end() &&
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dictionary.find("two") != dictionary.end() &&
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dictionary.find("two")->second == 4);
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//[case_insensitive_dictionary
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boost::unordered_map<std::string, int, ihash, iequal_to>
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idictionary;
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//]
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BOOST_TEST(idictionary.empty());
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idictionary["one"] = 1;
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BOOST_TEST(idictionary.size() == 1);
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BOOST_TEST(idictionary.find("ONE") != idictionary.end() &&
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idictionary.find("ONE") == idictionary.find("one"));
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idictionary.insert(std::make_pair("ONE", 2));
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BOOST_TEST(idictionary.size() == 1);
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BOOST_TEST(idictionary.find("ONE") != idictionary.end() &&
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idictionary.find("ONE")->first == "one" &&
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idictionary.find("ONE")->second == 1);
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idictionary["One"] = 3;
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BOOST_TEST(idictionary.size() == 1);
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BOOST_TEST(idictionary.find("ONE") != idictionary.end() &&
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idictionary.find("ONE")->first == "one" &&
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idictionary.find("ONE")->second == 3);
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idictionary["two"] = 4;
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BOOST_TEST(idictionary.size() == 2);
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BOOST_TEST(idictionary.find("two") != idictionary.end() &&
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idictionary.find("TWO")->first == "two" &&
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idictionary.find("Two")->second == 4);
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return boost::report_errors();
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}
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