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- // Copyright 2006-2009 Daniel James.
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #if !defined(BOOST_UNORDERED_TEST_OBJECTS_HEADER)
- #define BOOST_UNORDERED_TEST_OBJECTS_HEADER
- #include "../helpers/count.hpp"
- #include "../helpers/fwd.hpp"
- #include "../helpers/memory.hpp"
- #include <boost/config.hpp>
- #include <boost/limits.hpp>
- #include <cstddef>
- namespace test {
- // Note that the default hash function will work for any equal_to (but not
- // very well).
- class object;
- class movable;
- class implicitly_convertible;
- class hash;
- class less;
- class equal_to;
- template <class T> class allocator1;
- template <class T> class allocator2;
- object generate(object const*, random_generator);
- movable generate(movable const*, random_generator);
- implicitly_convertible generate(
- implicitly_convertible const*, random_generator);
- inline void ignore_variable(void const*) {}
- class object : private counted_object
- {
- friend class hash;
- friend class equal_to;
- friend class less;
- int tag1_, tag2_;
- public:
- explicit object(int t1 = 0, int t2 = 0) : tag1_(t1), tag2_(t2) {}
- ~object()
- {
- tag1_ = -1;
- tag2_ = -1;
- }
- friend bool operator==(object const& x1, object const& x2)
- {
- return x1.tag1_ == x2.tag1_ && x1.tag2_ == x2.tag2_;
- }
- friend bool operator!=(object const& x1, object const& x2)
- {
- return x1.tag1_ != x2.tag1_ || x1.tag2_ != x2.tag2_;
- }
- friend bool operator<(object const& x1, object const& x2)
- {
- return x1.tag1_ < x2.tag1_ ||
- (x1.tag1_ == x2.tag1_ && x1.tag2_ < x2.tag2_);
- }
- friend object generate(object const*, random_generator g)
- {
- int* x = 0;
- return object(generate(x, g), generate(x, g));
- }
- friend std::ostream& operator<<(std::ostream& out, object const& o)
- {
- return out << "(" << o.tag1_ << "," << o.tag2_ << ")";
- }
- };
- class movable : private counted_object
- {
- friend class hash;
- friend class equal_to;
- friend class less;
- int tag1_, tag2_;
- BOOST_COPYABLE_AND_MOVABLE(movable)
- public:
- explicit movable(int t1 = 0, int t2 = 0) : tag1_(t1), tag2_(t2) {}
- movable(movable const& x)
- : counted_object(x), tag1_(x.tag1_), tag2_(x.tag2_)
- {
- BOOST_TEST(x.tag1_ != -1);
- }
- movable(BOOST_RV_REF(movable) x)
- : counted_object(x), tag1_(x.tag1_), tag2_(x.tag2_)
- {
- BOOST_TEST(x.tag1_ != -1);
- x.tag1_ = -1;
- x.tag2_ = -1;
- }
- movable& operator=(BOOST_COPY_ASSIGN_REF(movable) x) // Copy assignment
- {
- BOOST_TEST(x.tag1_ != -1);
- tag1_ = x.tag1_;
- tag2_ = x.tag2_;
- return *this;
- }
- movable& operator=(BOOST_RV_REF(movable) x) // Move assignment
- {
- BOOST_TEST(x.tag1_ != -1);
- tag1_ = x.tag1_;
- tag2_ = x.tag2_;
- x.tag1_ = -1;
- x.tag2_ = -1;
- return *this;
- }
- ~movable()
- {
- tag1_ = -1;
- tag2_ = -1;
- }
- friend bool operator==(movable const& x1, movable const& x2)
- {
- BOOST_TEST(x1.tag1_ != -1 && x2.tag1_ != -1);
- return x1.tag1_ == x2.tag1_ && x1.tag2_ == x2.tag2_;
- }
- friend bool operator!=(movable const& x1, movable const& x2)
- {
- BOOST_TEST(x1.tag1_ != -1 && x2.tag1_ != -1);
- return x1.tag1_ != x2.tag1_ || x1.tag2_ != x2.tag2_;
- }
- friend bool operator<(movable const& x1, movable const& x2)
- {
- BOOST_TEST(x1.tag1_ != -1 && x2.tag1_ != -1);
- return x1.tag1_ < x2.tag1_ ||
- (x1.tag1_ == x2.tag1_ && x1.tag2_ < x2.tag2_);
- }
- friend movable generate(movable const*, random_generator g)
- {
- int* x = 0;
- return movable(generate(x, g), generate(x, g));
- }
- friend std::ostream& operator<<(std::ostream& out, movable const& o)
- {
- return out << "(" << o.tag1_ << "," << o.tag2_ << ")";
- }
- };
- class implicitly_convertible : private counted_object
- {
- int tag1_, tag2_;
- public:
- explicit implicitly_convertible(int t1 = 0, int t2 = 0)
- : tag1_(t1), tag2_(t2)
- {
- }
- operator object() const { return object(tag1_, tag2_); }
- operator movable() const { return movable(tag1_, tag2_); }
- friend implicitly_convertible generate(
- implicitly_convertible const*, random_generator g)
- {
- int* x = 0;
- return implicitly_convertible(generate(x, g), generate(x, g));
- }
- friend std::ostream& operator<<(
- std::ostream& out, implicitly_convertible const& o)
- {
- return out << "(" << o.tag1_ << "," << o.tag2_ << ")";
- }
- };
- // Note: This is a deliberately bad hash function.
- class hash
- {
- int type_;
- public:
- hash() : type_(0) {}
- explicit hash(int t) : type_(t) {}
- std::size_t operator()(object const& x) const
- {
- int result;
- switch (type_) {
- case 1:
- result = x.tag1_;
- break;
- case 2:
- result = x.tag2_;
- break;
- default:
- result = x.tag1_ + x.tag2_;
- }
- return static_cast<std::size_t>(result);
- }
- std::size_t operator()(movable const& x) const
- {
- int result;
- switch (type_) {
- case 1:
- result = x.tag1_;
- break;
- case 2:
- result = x.tag2_;
- break;
- default:
- result = x.tag1_ + x.tag2_;
- }
- return static_cast<std::size_t>(result);
- }
- std::size_t operator()(int x) const
- {
- int result;
- switch (type_) {
- case 1:
- result = x;
- break;
- case 2:
- result = x * 7;
- break;
- default:
- result = x * 256;
- }
- return static_cast<std::size_t>(result);
- }
- friend bool operator==(hash const& x1, hash const& x2)
- {
- return x1.type_ == x2.type_;
- }
- friend bool operator!=(hash const& x1, hash const& x2)
- {
- return x1.type_ != x2.type_;
- }
- };
- std::size_t hash_value(test::object const& x) { return hash()(x); }
- std::size_t hash_value(test::movable const& x) { return hash()(x); }
- class less
- {
- int type_;
- public:
- explicit less(int t = 0) : type_(t) {}
- bool operator()(object const& x1, object const& x2) const
- {
- switch (type_) {
- case 1:
- return x1.tag1_ < x2.tag1_;
- case 2:
- return x1.tag2_ < x2.tag2_;
- default:
- return x1 < x2;
- }
- }
- bool operator()(movable const& x1, movable const& x2) const
- {
- switch (type_) {
- case 1:
- return x1.tag1_ < x2.tag1_;
- case 2:
- return x1.tag2_ < x2.tag2_;
- default:
- return x1 < x2;
- }
- }
- std::size_t operator()(int x1, int x2) const { return x1 < x2; }
- friend bool operator==(less const& x1, less const& x2)
- {
- return x1.type_ == x2.type_;
- }
- };
- class equal_to
- {
- int type_;
- public:
- equal_to() : type_(0) {}
- explicit equal_to(int t) : type_(t) {}
- bool operator()(object const& x1, object const& x2) const
- {
- switch (type_) {
- case 1:
- return x1.tag1_ == x2.tag1_;
- case 2:
- return x1.tag2_ == x2.tag2_;
- default:
- return x1 == x2;
- }
- }
- bool operator()(movable const& x1, movable const& x2) const
- {
- switch (type_) {
- case 1:
- return x1.tag1_ == x2.tag1_;
- case 2:
- return x1.tag2_ == x2.tag2_;
- default:
- return x1 == x2;
- }
- }
- std::size_t operator()(int x1, int x2) const { return x1 == x2; }
- friend bool operator==(equal_to const& x1, equal_to const& x2)
- {
- return x1.type_ == x2.type_;
- }
- friend bool operator!=(equal_to const& x1, equal_to const& x2)
- {
- return x1.type_ != x2.type_;
- }
- friend less create_compare(equal_to x) { return less(x.type_); }
- };
- // allocator1 only has the old fashioned 'construct' method and has
- // a few less typedefs. allocator2 uses a custom pointer class.
- template <class T> class allocator1
- {
- public:
- int tag_;
- typedef T value_type;
- template <class U> struct rebind
- {
- typedef allocator1<U> other;
- };
- allocator1() : tag_(0) { detail::tracker.allocator_ref(); }
- explicit allocator1(int t) : tag_(t) { detail::tracker.allocator_ref(); }
- template <class Y> allocator1(allocator1<Y> const& x) : tag_(x.tag_)
- {
- detail::tracker.allocator_ref();
- }
- allocator1(allocator1 const& x) : tag_(x.tag_)
- {
- detail::tracker.allocator_ref();
- }
- ~allocator1() { detail::tracker.allocator_unref(); }
- T* allocate(std::size_t n)
- {
- T* ptr(static_cast<T*>(::operator new(n * sizeof(T))));
- detail::tracker.track_allocate((void*)ptr, n, sizeof(T), tag_);
- return ptr;
- }
- T* allocate(std::size_t n, void const*)
- {
- T* ptr(static_cast<T*>(::operator new(n * sizeof(T))));
- detail::tracker.track_allocate((void*)ptr, n, sizeof(T), tag_);
- return ptr;
- }
- void deallocate(T* p, std::size_t n)
- {
- detail::tracker.track_deallocate((void*)p, n, sizeof(T), tag_);
- ::operator delete((void*)p);
- }
- #if BOOST_UNORDERED_CXX11_CONSTRUCTION
- template <typename U, typename... Args> void construct(U* p, Args&&... args)
- {
- detail::tracker.track_construct((void*)p, sizeof(U), tag_);
- new (p) U(boost::forward<Args>(args)...);
- }
- template <typename U> void destroy(U* p)
- {
- detail::tracker.track_destroy((void*)p, sizeof(U), tag_);
- p->~U();
- // Work around MSVC buggy unused parameter warning.
- ignore_variable(&p);
- }
- #else
- private:
- // I'm going to claim in the documentation that construct/destroy
- // is never used when C++11 support isn't available, so might as
- // well check that in the text.
- // TODO: Or maybe just disallow them for values?
- template <typename U> void construct(U* p);
- template <typename U, typename A0> void construct(U* p, A0 const&);
- template <typename U, typename A0, typename A1>
- void construct(U* p, A0 const&, A1 const&);
- template <typename U, typename A0, typename A1, typename A2>
- void construct(U* p, A0 const&, A1 const&, A2 const&);
- template <typename U> void destroy(U* p);
- public:
- #endif
- bool operator==(allocator1 const& x) const { return tag_ == x.tag_; }
- bool operator!=(allocator1 const& x) const { return tag_ != x.tag_; }
- enum
- {
- is_select_on_copy = false,
- is_propagate_on_swap = false,
- is_propagate_on_assign = false,
- is_propagate_on_move = false
- };
- };
- template <class T> class ptr;
- template <class T> class const_ptr;
- struct void_ptr
- {
- #if !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
- template <typename T> friend class ptr;
- private:
- #endif
- void* ptr_;
- public:
- void_ptr() : ptr_(0) {}
- template <typename T> explicit void_ptr(ptr<T> const& x) : ptr_(x.ptr_) {}
- // I'm not using the safe bool idiom because the containers should be
- // able to cope with bool conversions.
- operator bool() const { return !!ptr_; }
- bool operator==(void_ptr const& x) const { return ptr_ == x.ptr_; }
- bool operator!=(void_ptr const& x) const { return ptr_ != x.ptr_; }
- };
- class void_const_ptr
- {
- #if !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
- template <typename T> friend class const_ptr;
- private:
- #endif
- void* ptr_;
- public:
- void_const_ptr() : ptr_(0) {}
- template <typename T>
- explicit void_const_ptr(const_ptr<T> const& x) : ptr_(x.ptr_)
- {
- }
- // I'm not using the safe bool idiom because the containers should be
- // able to cope with bool conversions.
- operator bool() const { return !!ptr_; }
- bool operator==(void_const_ptr const& x) const { return ptr_ == x.ptr_; }
- bool operator!=(void_const_ptr const& x) const { return ptr_ != x.ptr_; }
- };
- template <class T> class ptr
- {
- friend class allocator2<T>;
- friend class const_ptr<T>;
- friend struct void_ptr;
- T* ptr_;
- ptr(T* x) : ptr_(x) {}
- public:
- ptr() : ptr_(0) {}
- explicit ptr(void_ptr const& x) : ptr_((T*)x.ptr_) {}
- T& operator*() const { return *ptr_; }
- T* operator->() const { return ptr_; }
- ptr& operator++()
- {
- ++ptr_;
- return *this;
- }
- ptr operator++(int)
- {
- ptr tmp(*this);
- ++ptr_;
- return tmp;
- }
- ptr operator+(std::ptrdiff_t s) const { return ptr<T>(ptr_ + s); }
- friend ptr operator+(std::ptrdiff_t s, ptr p) { return ptr<T>(s + p.ptr_); }
- T& operator[](std::ptrdiff_t s) const { return ptr_[s]; }
- bool operator!() const { return !ptr_; }
- // I'm not using the safe bool idiom because the containers should be
- // able to cope with bool conversions.
- operator bool() const { return !!ptr_; }
- bool operator==(ptr const& x) const { return ptr_ == x.ptr_; }
- bool operator!=(ptr const& x) const { return ptr_ != x.ptr_; }
- bool operator<(ptr const& x) const { return ptr_ < x.ptr_; }
- bool operator>(ptr const& x) const { return ptr_ > x.ptr_; }
- bool operator<=(ptr const& x) const { return ptr_ <= x.ptr_; }
- bool operator>=(ptr const& x) const { return ptr_ >= x.ptr_; }
- };
- template <class T> class const_ptr
- {
- friend class allocator2<T>;
- friend struct const_void_ptr;
- T const* ptr_;
- const_ptr(T const* ptr) : ptr_(ptr) {}
- public:
- const_ptr() : ptr_(0) {}
- const_ptr(ptr<T> const& x) : ptr_(x.ptr_) {}
- explicit const_ptr(void_const_ptr const& x) : ptr_((T const*)x.ptr_) {}
- T const& operator*() const { return *ptr_; }
- T const* operator->() const { return ptr_; }
- const_ptr& operator++()
- {
- ++ptr_;
- return *this;
- }
- const_ptr operator++(int)
- {
- const_ptr tmp(*this);
- ++ptr_;
- return tmp;
- }
- const_ptr operator+(std::ptrdiff_t s) const { return const_ptr(ptr_ + s); }
- friend const_ptr operator+(std::ptrdiff_t s, const_ptr p)
- {
- return ptr<T>(s + p.ptr_);
- }
- T const& operator[](int s) const { return ptr_[s]; }
- bool operator!() const { return !ptr_; }
- operator bool() const { return !!ptr_; }
- bool operator==(const_ptr const& x) const { return ptr_ == x.ptr_; }
- bool operator!=(const_ptr const& x) const { return ptr_ != x.ptr_; }
- bool operator<(const_ptr const& x) const { return ptr_ < x.ptr_; }
- bool operator>(const_ptr const& x) const { return ptr_ > x.ptr_; }
- bool operator<=(const_ptr const& x) const { return ptr_ <= x.ptr_; }
- bool operator>=(const_ptr const& x) const { return ptr_ >= x.ptr_; }
- };
- template <class T> class allocator2
- {
- #ifdef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
- public:
- #else
- template <class> friend class allocator2;
- #endif
- int tag_;
- public:
- typedef std::size_t size_type;
- typedef std::ptrdiff_t difference_type;
- typedef void_ptr void_pointer;
- typedef void_const_ptr const_void_pointer;
- typedef ptr<T> pointer;
- typedef const_ptr<T> const_pointer;
- typedef T& reference;
- typedef T const& const_reference;
- typedef T value_type;
- template <class U> struct rebind
- {
- typedef allocator2<U> other;
- };
- allocator2() : tag_(0) { detail::tracker.allocator_ref(); }
- explicit allocator2(int t) : tag_(t) { detail::tracker.allocator_ref(); }
- template <class Y> allocator2(allocator2<Y> const& x) : tag_(x.tag_)
- {
- detail::tracker.allocator_ref();
- }
- allocator2(allocator2 const& x) : tag_(x.tag_)
- {
- detail::tracker.allocator_ref();
- }
- ~allocator2() { detail::tracker.allocator_unref(); }
- pointer address(reference r) { return pointer(&r); }
- const_pointer address(const_reference r) { return const_pointer(&r); }
- pointer allocate(size_type n)
- {
- pointer p(static_cast<T*>(::operator new(n * sizeof(T))));
- detail::tracker.track_allocate((void*)p.ptr_, n, sizeof(T), tag_);
- return p;
- }
- pointer allocate(size_type n, void const*)
- {
- pointer ptr(static_cast<T*>(::operator new(n * sizeof(T))));
- detail::tracker.track_allocate((void*)ptr, n, sizeof(T), tag_);
- return ptr;
- }
- void deallocate(pointer p, size_type n)
- {
- detail::tracker.track_deallocate((void*)p.ptr_, n, sizeof(T), tag_);
- ::operator delete((void*)p.ptr_);
- }
- void construct(T* p, T const& t)
- {
- detail::tracker.track_construct((void*)p, sizeof(T), tag_);
- new (p) T(t);
- }
- #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
- template <class... Args> void construct(T* p, BOOST_FWD_REF(Args)... args)
- {
- detail::tracker.track_construct((void*)p, sizeof(T), tag_);
- new (p) T(boost::forward<Args>(args)...);
- }
- #endif
- void destroy(T* p)
- {
- detail::tracker.track_destroy((void*)p, sizeof(T), tag_);
- p->~T();
- }
- size_type max_size() const
- {
- return (std::numeric_limits<size_type>::max)();
- }
- bool operator==(allocator2 const& x) const { return tag_ == x.tag_; }
- bool operator!=(allocator2 const& x) const { return tag_ != x.tag_; }
- enum
- {
- is_select_on_copy = false,
- is_propagate_on_swap = false,
- is_propagate_on_assign = false,
- is_propagate_on_move = false
- };
- };
- template <class T>
- bool equivalent_impl(
- allocator1<T> const& x, allocator1<T> const& y, test::derived_type)
- {
- return x == y;
- }
- template <class T>
- bool equivalent_impl(
- allocator2<T> const& x, allocator2<T> const& y, test::derived_type)
- {
- return x == y;
- }
- }
- #endif
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