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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
//
//===----------------------------------------------------------------------===//
//
// Copyright 2020, Intel Corporation
//
// testing transparent
//
#ifndef LIBPMEMOBJ_CPP_TESTS_TRANSPARENT_H
#define LIBPMEMOBJ_CPP_TESTS_TRANSPARENT_H
/* Windows has a max macro which collides with std::numeric_limits::max */
#if defined(max) && defined(_WIN32)
#undef max
#endif
#include <libpmemobj++/container/string.hpp>
#include <libpmemobj++/p.hpp>
#include <limits>
#include "private_constructor.h"
#include "unittest.hpp"
struct C2Int { // comparable to int
C2Int() : i_(0)
{
}
C2Int(int i) : i_(i)
{
}
int
get() const
{
return i_;
}
private:
pmem::obj::p<int> i_;
};
bool
operator<(int rhs, const C2Int &lhs)
{
return rhs < lhs.get();
}
bool
operator<(const C2Int &rhs, const C2Int &lhs)
{
return rhs.get() < lhs.get();
}
bool
operator<(const C2Int &rhs, int lhs)
{
return rhs.get() < lhs;
}
class Moveable {
Moveable &operator=(const Moveable &);
pmem::obj::p<int> int_;
pmem::obj::p<double> double_;
public:
Moveable() : int_(0), double_(0)
{
}
Moveable(int i, double d) : int_(i), double_(d)
{
}
Moveable(Moveable &&x) : int_(x.int_), double_(x.double_)
{
x.int_ = -1;
x.double_ = -1;
}
Moveable(const Moveable &) = default;
Moveable &
operator=(Moveable &&x)
{
int_ = x.int_;
x.int_ = -1;
double_ = x.double_;
x.double_ = -1;
return *this;
}
bool
operator==(const Moveable &x) const
{
return int_ == x.int_ && double_ == x.double_;
}
bool
operator<(const Moveable &x) const
{
return int_ < x.int_ || (int_ == x.int_ && double_ < x.double_);
}
int
get() const
{
return int_;
}
bool
moved() const
{
return int_ == -1;
}
};
class MoveableWrapper {
Moveable mv_;
public:
MoveableWrapper(Moveable &&mv) : mv_(std::move(mv))
{
}
Moveable
get() const
{
return mv_;
}
};
bool
operator<(const MoveableWrapper &lhs, const MoveableWrapper &rhs)
{
return lhs.get() < rhs.get();
}
bool
operator<(const MoveableWrapper &lhs, Moveable rhs)
{
return lhs.get() < rhs;
}
bool
operator<(Moveable lhs, const MoveableWrapper &rhs)
{
return lhs < rhs.get();
}
struct transparent_less {
template <class T, class U>
constexpr auto
operator()(T &&t, U &&u) const
noexcept(noexcept(std::forward<T>(t) < std::forward<U>(u)))
-> decltype(std::forward<T>(t) < std::forward<U>(u))
{
return std::forward<T>(t) < std::forward<U>(u);
}
using is_transparent = void; // correct
};
struct transparent_less_not_referenceable {
template <class T, class U>
constexpr auto
operator()(T &&t, U &&u) const
noexcept(noexcept(std::forward<T>(t) < std::forward<U>(u)))
-> decltype(std::forward<T>(t) < std::forward<U>(u))
{
return std::forward<T>(t) < std::forward<U>(u);
}
using is_transparent =
void() const &; // it's a type; a weird one, but a type
};
struct heterogenous_bytes_view {
heterogenous_bytes_view(const int *value)
{
v = (unsigned)(*value + (std::numeric_limits<int>::max)() + 1);
}
heterogenous_bytes_view(const C2Int *value)
{
v = (unsigned)(value->get() +
(std::numeric_limits<int>::max)() + 1);
}
heterogenous_bytes_view(const Moveable *value)
{
v = (unsigned)(value->get() +
(std::numeric_limits<int>::max)() + 1);
}
heterogenous_bytes_view(const MoveableWrapper *value)
{
v = (unsigned)(value->get().get() +
(std::numeric_limits<int>::max)() + 1);
}
heterogenous_bytes_view(const PrivateConstructor *value)
{
v = (unsigned)(value->get() +
(std::numeric_limits<int>::max)() + 1);
}
size_t
size() const
{
return sizeof(int);
}
char operator[](std::size_t p) const
{
return reinterpret_cast<const char *>(&v)[size() - p - 1];
}
unsigned v;
using is_transparent = void;
};
#endif // LIBPMEMOBJ_CPP_TESTS_TRANSPARENT_H
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