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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03
// <memory>
// unique_ptr
// Test unique_ptr converting move ctor
#include <memory>
#include <cassert>
#include "test_macros.h"
#include "deleter_types.h"
#include "unique_ptr_test_helper.h"
template <int ID = 0>
struct GenericDeleter {
void operator()(void*) const {}
};
template <int ID = 0>
struct GenericConvertingDeleter {
template <int OID>
GenericConvertingDeleter(GenericConvertingDeleter<OID>) {}
void operator()(void*) const {}
};
TEST_CONSTEXPR_CXX23 void test_sfinae() {
{ // Disallow copying
using U1 = std::unique_ptr<A[], GenericConvertingDeleter<0> >;
using U2 = std::unique_ptr<A[], GenericConvertingDeleter<1> >;
static_assert(std::is_constructible<U1, U2&&>::value, "");
static_assert(!std::is_constructible<U1, U2&>::value, "");
static_assert(!std::is_constructible<U1, const U2&>::value, "");
static_assert(!std::is_constructible<U1, const U2&&>::value, "");
}
{ // Disallow illegal qualified conversions
using U1 = std::unique_ptr<const A[]>;
using U2 = std::unique_ptr<A[]>;
static_assert(std::is_constructible<U1, U2&&>::value, "");
static_assert(!std::is_constructible<U2, U1&&>::value, "");
}
{ // Disallow base-to-derived conversions.
using UA = std::unique_ptr<A[]>;
using UB = std::unique_ptr<B[]>;
static_assert(!std::is_constructible<UA, UB&&>::value, "");
}
{ // Disallow base-to-derived conversions.
using UA = std::unique_ptr<A[], GenericConvertingDeleter<0> >;
using UB = std::unique_ptr<B[], GenericConvertingDeleter<1> >;
static_assert(!std::is_constructible<UA, UB&&>::value, "");
}
{ // Disallow invalid deleter initialization
using U1 = std::unique_ptr<A[], GenericDeleter<0> >;
using U2 = std::unique_ptr<A[], GenericDeleter<1> >;
static_assert(!std::is_constructible<U1, U2&&>::value, "");
}
{ // Disallow reference deleters with different qualifiers
using U1 = std::unique_ptr<A[], Deleter<A[]>&>;
using U2 = std::unique_ptr<A[], const Deleter<A[]>&>;
static_assert(!std::is_constructible<U1, U2&&>::value, "");
static_assert(!std::is_constructible<U2, U1&&>::value, "");
}
{
using U1 = std::unique_ptr<A[]>;
using U2 = std::unique_ptr<A>;
static_assert(!std::is_constructible<U1, U2&&>::value, "");
static_assert(!std::is_constructible<U2, U1&&>::value, "");
}
}
TEST_CONSTEXPR_CXX23 bool test() {
test_sfinae();
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER >= 23
static_assert(test());
#endif
return 0;
}
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