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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// The test fails due to the missing is_trivially_constructible intrinsic.
// XFAIL: gcc-4.9
// The test suite needs to define the ABI macros on the command line when
// modules are enabled.
// UNSUPPORTED: -fmodules
// <utility>
// template <class T1, class T2> struct pair
// Test that we properly provide the trivial copy operations by default.
// FreeBSD provides the old ABI. This test checks the new ABI so we need
// to manually turn it on.
#undef _LIBCPP_ABI_UNSTABLE
#undef _LIBCPP_ABI_VERSION
#define _LIBCPP_ABI_VERSION 1
#define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR
#include <utility>
#include <type_traits>
#include <cstdlib>
#include <cstddef>
#include <cassert>
#include "test_macros.h"
#if !defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
#error trivial ctor ABI macro defined
#endif
template <class T>
struct HasNonTrivialABI : std::integral_constant<bool,
!std::is_trivially_destructible<T>::value
|| (std::is_copy_constructible<T>::value && !std::is_trivially_copy_constructible<T>::value)
#if TEST_STD_VER >= 11
|| (std::is_move_constructible<T>::value && !std::is_trivially_move_constructible<T>::value)
#endif
> {};
#if TEST_STD_VER >= 11
struct NonTrivialDtor {
NonTrivialDtor(NonTrivialDtor const&) = default;
~NonTrivialDtor();
};
NonTrivialDtor::~NonTrivialDtor() {}
static_assert(HasNonTrivialABI<NonTrivialDtor>::value, "");
struct NonTrivialCopy {
NonTrivialCopy(NonTrivialCopy const&);
};
NonTrivialCopy::NonTrivialCopy(NonTrivialCopy const&) {}
static_assert(HasNonTrivialABI<NonTrivialCopy>::value, "");
struct NonTrivialMove {
NonTrivialMove(NonTrivialMove const&) = default;
NonTrivialMove(NonTrivialMove&&);
};
NonTrivialMove::NonTrivialMove(NonTrivialMove&&) {}
static_assert(HasNonTrivialABI<NonTrivialMove>::value, "");
struct DeletedCopy {
DeletedCopy(DeletedCopy const&) = delete;
DeletedCopy(DeletedCopy&&) = default;
};
static_assert(!HasNonTrivialABI<DeletedCopy>::value, "");
struct TrivialMove {
TrivialMove(TrivialMove &&) = default;
};
static_assert(!HasNonTrivialABI<TrivialMove>::value, "");
struct Trivial {
Trivial(Trivial const&) = default;
};
static_assert(!HasNonTrivialABI<Trivial>::value, "");
#endif
void test_trivial()
{
{
typedef std::pair<int, short> P;
static_assert(std::is_copy_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
#if TEST_STD_VER >= 11
{
typedef std::pair<int, short> P;
static_assert(std::is_move_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
{
using P = std::pair<NonTrivialDtor, int>;
static_assert(!std::is_trivially_destructible<P>::value, "");
static_assert(std::is_copy_constructible<P>::value, "");
static_assert(!std::is_trivially_copy_constructible<P>::value, "");
static_assert(std::is_move_constructible<P>::value, "");
static_assert(!std::is_trivially_move_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
{
using P = std::pair<NonTrivialCopy, int>;
static_assert(std::is_copy_constructible<P>::value, "");
static_assert(!std::is_trivially_copy_constructible<P>::value, "");
static_assert(std::is_move_constructible<P>::value, "");
static_assert(!std::is_trivially_move_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
{
using P = std::pair<NonTrivialMove, int>;
static_assert(std::is_copy_constructible<P>::value, "");
static_assert(!std::is_trivially_copy_constructible<P>::value, "");
static_assert(std::is_move_constructible<P>::value, "");
static_assert(!std::is_trivially_move_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
{
using P = std::pair<DeletedCopy, int>;
static_assert(!std::is_copy_constructible<P>::value, "");
static_assert(!std::is_trivially_copy_constructible<P>::value, "");
static_assert(std::is_move_constructible<P>::value, "");
static_assert(!std::is_trivially_move_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
{
using P = std::pair<Trivial, int>;
static_assert(std::is_copy_constructible<P>::value, "");
static_assert(!std::is_trivially_copy_constructible<P>::value, "");
static_assert(std::is_move_constructible<P>::value, "");
static_assert(!std::is_trivially_move_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
{
using P = std::pair<TrivialMove, int>;
static_assert(!std::is_copy_constructible<P>::value, "");
static_assert(!std::is_trivially_copy_constructible<P>::value, "");
static_assert(std::is_move_constructible<P>::value, "");
static_assert(!std::is_trivially_move_constructible<P>::value, "");
static_assert(HasNonTrivialABI<P>::value, "");
}
#endif
}
void test_layout() {
typedef std::pair<std::pair<char, char>, char> PairT;
static_assert(sizeof(PairT) == 3, "");
static_assert(TEST_ALIGNOF(PairT) == TEST_ALIGNOF(char), "");
static_assert(offsetof(PairT, first) == 0, "");
}
int main() {
test_trivial();
test_layout();
}
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