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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef TEST_STD_CONTAINERS_CONTAINER_ADAPTORS_FLAT_HELPERS_H
#define TEST_STD_CONTAINERS_CONTAINER_ADAPTORS_FLAT_HELPERS_H
#include <cstdint>
#include <vector>
#include "test_macros.h"
template <class T>
struct CopyOnlyVector : std::vector<T> {
using std::vector<T>::vector;
constexpr CopyOnlyVector(const CopyOnlyVector&) = default;
constexpr CopyOnlyVector(CopyOnlyVector&& other) : CopyOnlyVector(other) {}
constexpr CopyOnlyVector(CopyOnlyVector&& other, std::vector<T>::allocator_type alloc)
: CopyOnlyVector(other, alloc) {}
constexpr CopyOnlyVector& operator=(const CopyOnlyVector&) = default;
constexpr CopyOnlyVector& operator=(CopyOnlyVector& other) { return this->operator=(other); }
};
template <class T>
struct SillyReserveVector : std::vector<T> {
using std::vector<T>::vector;
constexpr void reserve(std::size_t) { this->clear(); }
};
template <class T, bool ConvertibleToT = false>
struct Transparent {
T t;
constexpr explicit operator T() const
requires ConvertibleToT
{
return t;
}
};
template <class T>
using ConvertibleTransparent = Transparent<T, true>;
template <class T>
using ExplicitlyConvertibleTransparent = Transparent<T, true>;
template <class T>
using NonConvertibleTransparent = Transparent<T, false>;
struct TransparentComparator {
using is_transparent = void;
bool* transparent_used = nullptr;
TransparentComparator() = default;
constexpr TransparentComparator(bool& used) : transparent_used(&used) {}
template <class T, bool Convertible>
constexpr bool operator()(const T& t, const Transparent<T, Convertible>& transparent) const {
if (transparent_used != nullptr) {
*transparent_used = true;
}
return t < transparent.t;
}
template <class T, bool Convertible>
constexpr bool operator()(const Transparent<T, Convertible>& transparent, const T& t) const {
if (transparent_used != nullptr) {
*transparent_used = true;
}
return transparent.t < t;
}
template <class T>
constexpr bool operator()(const T& t1, const T& t2) const {
return t1 < t2;
}
};
struct NonTransparentComparator {
template <class T, bool Convertible>
bool operator()(const T&, const Transparent<T, Convertible>&) const;
template <class T, bool Convertible>
bool operator()(const Transparent<T, Convertible>&, const T&) const;
template <class T>
bool operator()(const T&, const T&) const;
};
struct NoDefaultCtr {
NoDefaultCtr() = delete;
};
class Moveable {
int int_;
double double_;
public:
TEST_CONSTEXPR Moveable() : int_(0), double_(0) {}
TEST_CONSTEXPR Moveable(int i, double d) : int_(i), double_(d) {}
TEST_CONSTEXPR Moveable(Moveable&& x) : int_(x.int_), double_(x.double_) {
x.int_ = -1;
x.double_ = -1;
}
TEST_CONSTEXPR Moveable& operator=(Moveable&& x) {
int_ = x.int_;
x.int_ = -1;
double_ = x.double_;
x.double_ = -1;
return *this;
}
Moveable(const Moveable&) = delete;
Moveable& operator=(const Moveable&) = delete;
TEST_CONSTEXPR bool operator==(const Moveable& x) const { return int_ == x.int_ && double_ == x.double_; }
TEST_CONSTEXPR bool operator<(const Moveable& x) const {
return int_ < x.int_ || (int_ == x.int_ && double_ < x.double_);
}
TEST_CONSTEXPR int get() const { return int_; }
TEST_CONSTEXPR bool moved() const { return int_ == -1; }
};
#ifndef TEST_HAS_NO_EXCEPTIONS
template <class T>
struct EmplaceUnsafeContainer : std::vector<T> {
using std::vector<T>::vector;
template <class... Args>
auto emplace(Args&&... args) -> decltype(std::declval<std::vector<T>>().emplace(std::forward<Args>(args)...)) {
if (this->size() > 1) {
auto it1 = this->begin();
auto it2 = it1 + 1;
// messing up the container
std::iter_swap(it1, it2);
}
throw 42;
}
template <class... Args>
auto insert(Args&&... args) -> decltype(std::declval<std::vector<T>>().insert(std::forward<Args>(args)...)) {
if (this->size() > 1) {
auto it1 = this->begin();
auto it2 = it1 + 1;
// messing up the container
std::iter_swap(it1, it2);
}
throw 42;
}
template <class... Args>
auto insert_range(Args&&... args)
-> decltype(std::declval<std::vector<T>>().insert_range(std::forward<Args>(args)...)) {
if (this->size() > 1) {
auto it1 = this->begin();
auto it2 = it1 + 1;
// messing up the container
std::iter_swap(it1, it2);
}
throw 42;
}
};
template <class T>
struct ThrowOnEraseContainer : std::vector<T> {
using std::vector<T>::vector;
template <class... Args>
auto erase(Args&&... args) -> decltype(std::declval<std::vector<T>>().erase(std::forward<Args>(args)...)) {
throw 42;
}
};
template <class T>
struct ThrowOnMoveContainer : std::vector<T> {
using std::vector<T>::vector;
ThrowOnMoveContainer(ThrowOnMoveContainer&&) { throw 42; }
ThrowOnMoveContainer& operator=(ThrowOnMoveContainer&&) { throw 42; }
};
#endif // TEST_HAS_NO_EXCEPTIONS
#endif // TEST_STD_CONTAINERS_CONTAINER_ADAPTORS_FLAT_HELPERS_H
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