dynarmic/externals/robin-map/tests/utils.h

328 lines
9.1 KiB
C
Raw Normal View History

/**
* MIT License
*
* Copyright (c) 2017 Thibaut Goetghebuer-Planchon <tessil@gmx.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TSL_UTILS_H
#define TSL_UTILS_H
#include <cstddef>
#include <cstdint>
#include <functional>
#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include <tsl/robin_hash.h>
#ifdef TSL_RH_NO_EXCEPTIONS
#define TSL_RH_CHECK_THROW(S, E)
#else
#define TSL_RH_CHECK_THROW(S, E) BOOST_CHECK_THROW(S, E)
#endif
template<typename T>
class identity_hash {
public:
std::size_t operator()(const T& value) const {
return static_cast<std::size_t>(value);
}
};
template<unsigned int MOD>
class mod_hash {
public:
template<typename T>
std::size_t operator()(const T& value) const {
return std::hash<T>()(value) % MOD;
}
};
class self_reference_member_test {
public:
self_reference_member_test() : m_value(std::to_string(-1)), m_value_ptr(&m_value) {
}
explicit self_reference_member_test(std::int64_t value) : m_value(std::to_string(value)), m_value_ptr(&m_value) {
}
self_reference_member_test(const self_reference_member_test& other) : m_value(*other.m_value_ptr), m_value_ptr(&m_value) {
}
self_reference_member_test(self_reference_member_test&& other) : m_value(*other.m_value_ptr), m_value_ptr(&m_value) {
}
self_reference_member_test& operator=(const self_reference_member_test& other) {
m_value = *other.m_value_ptr;
m_value_ptr = &m_value;
return *this;
}
self_reference_member_test& operator=(self_reference_member_test&& other) {
m_value = *other.m_value_ptr;
m_value_ptr = &m_value;
return *this;
}
std::string value() const {
return *m_value_ptr;
}
friend std::ostream& operator<<(std::ostream& stream, const self_reference_member_test& value) {
stream << *value.m_value_ptr;
return stream;
}
friend bool operator==(const self_reference_member_test& lhs, const self_reference_member_test& rhs) {
return *lhs.m_value_ptr == *rhs.m_value_ptr;
}
friend bool operator!=(const self_reference_member_test& lhs, const self_reference_member_test& rhs) {
return !(lhs == rhs);
}
friend bool operator<(const self_reference_member_test& lhs, const self_reference_member_test& rhs) {
return *lhs.m_value_ptr < *rhs.m_value_ptr;
}
private:
std::string m_value;
std::string* m_value_ptr;
};
class move_only_test {
public:
explicit move_only_test(std::int64_t value) : m_value(new std::string(std::to_string(value))) {
}
move_only_test(const move_only_test&) = delete;
move_only_test(move_only_test&&) = default;
move_only_test& operator=(const move_only_test&) = delete;
move_only_test& operator=(move_only_test&&) = default;
friend std::ostream& operator<<(std::ostream& stream, const move_only_test& value) {
if(value.m_value == nullptr) {
stream << "null";
}
else {
stream << *value.m_value;
}
return stream;
}
friend bool operator==(const move_only_test& lhs, const move_only_test& rhs) {
if(lhs.m_value == nullptr || rhs.m_value == nullptr) {
return lhs.m_value == nullptr && rhs.m_value == nullptr;
}
else {
return *lhs.m_value == *rhs.m_value;
}
}
friend bool operator!=(const move_only_test& lhs, const move_only_test& rhs) {
return !(lhs == rhs);
}
friend bool operator<(const move_only_test& lhs, const move_only_test& rhs) {
if(lhs.m_value == nullptr && rhs.m_value == nullptr) {
return false;
}
else if(lhs.m_value == nullptr) {
return true;
}
else if(rhs.m_value == nullptr) {
return false;
}
else {
return *lhs.m_value < *rhs.m_value;
}
}
const std::string& value() const {
return *m_value;
}
private:
std::unique_ptr<std::string> m_value;
};
class copy_only_test {
public:
explicit copy_only_test(std::int64_t value): m_value(std::to_string(value)) {
}
copy_only_test(const copy_only_test& other): m_value(other.m_value) {
}
copy_only_test& operator=(const copy_only_test& other) {
m_value = other.m_value;
return *this;
}
~copy_only_test() {
}
friend std::ostream& operator<<(std::ostream& stream, const copy_only_test& value) {
stream << value.m_value;
return stream;
}
friend bool operator==(const copy_only_test& lhs, const copy_only_test& rhs) {
return lhs.m_value == rhs.m_value;
}
friend bool operator!=(const copy_only_test& lhs, const copy_only_test& rhs) {
return !(lhs == rhs);
}
friend bool operator<(const copy_only_test& lhs, const copy_only_test& rhs) {
return lhs.m_value < rhs.m_value;
}
std::string value() const {
return m_value;
}
private:
std::string m_value;
};
namespace std {
template<>
struct hash<self_reference_member_test> {
std::size_t operator()(const self_reference_member_test& val) const {
return std::hash<std::string>()(val.value());
}
};
template<>
struct hash<move_only_test> {
std::size_t operator()(const move_only_test& val) const {
return std::hash<std::string>()(val.value());
}
};
template<>
struct hash<copy_only_test> {
std::size_t operator()(const copy_only_test& val) const {
return std::hash<std::string>()(val.value());
}
};
}
class utils {
public:
template<typename T>
static T get_key(std::size_t counter);
template<typename T>
static T get_value(std::size_t counter);
template<typename HMap>
static HMap get_filled_hash_map(std::size_t nb_elements);
};
template<>
inline std::int64_t utils::get_key<std::int64_t>(std::size_t counter) {
return tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter);
}
template<>
inline self_reference_member_test utils::get_key<self_reference_member_test>(std::size_t counter) {
return self_reference_member_test(tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter));
}
template<>
inline std::string utils::get_key<std::string>(std::size_t counter) {
return "Key " + std::to_string(counter);
}
template<>
inline move_only_test utils::get_key<move_only_test>(std::size_t counter) {
return move_only_test(tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter));
}
template<>
inline copy_only_test utils::get_key<copy_only_test>(std::size_t counter) {
return copy_only_test(tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter));
}
template<>
inline std::int64_t utils::get_value<std::int64_t>(std::size_t counter) {
return tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter*2);
}
template<>
inline self_reference_member_test utils::get_value<self_reference_member_test>(std::size_t counter) {
return self_reference_member_test(tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter*2));
}
template<>
inline std::string utils::get_value<std::string>(std::size_t counter) {
return "Value " + std::to_string(counter);
}
template<>
inline move_only_test utils::get_value<move_only_test>(std::size_t counter) {
return move_only_test(tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter*2));
}
template<>
inline copy_only_test utils::get_value<copy_only_test>(std::size_t counter) {
return copy_only_test(tsl::detail_robin_hash::numeric_cast<std::int64_t>(counter*2));
}
template<typename HMap>
inline HMap utils::get_filled_hash_map(std::size_t nb_elements) {
using key_t = typename HMap::key_type; using value_t = typename HMap:: mapped_type;
HMap map;
map.reserve(nb_elements);
for(std::size_t i = 0; i < nb_elements; i++) {
map.insert({utils::get_key<key_t>(i), utils::get_value<value_t>(i)});
}
return map;
}
#endif