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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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <memory>
// unique_ptr
// Test unique_ptr converting move ctor
#include <memory>
#include <cassert>
#include "test_macros.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 {}
};
template <bool IsArray>
void test_sfinae() {
#if TEST_STD_VER >= 11
typedef typename std::conditional<IsArray, A[], A>::type VT;
{ // Test that different non-reference deleter types are allowed so long
// as they convert to each other.
using U1 = std::unique_ptr<VT, GenericConvertingDeleter<0> >;
using U2 = std::unique_ptr<VT, GenericConvertingDeleter<1> >;
static_assert(std::is_constructible<U1, U2&&>::value, "");
}
{ // Test that different non-reference deleter types are disallowed when
// they cannot convert.
using U1 = std::unique_ptr<VT, GenericDeleter<0> >;
using U2 = std::unique_ptr<VT, GenericDeleter<1> >;
static_assert(!std::is_constructible<U1, U2&&>::value, "");
}
{ // Test that if the destination deleter is a reference type then only
// exact matches are allowed.
using U1 = std::unique_ptr<VT, GenericConvertingDeleter<0> const& >;
using U2 = std::unique_ptr<VT, GenericConvertingDeleter<0> >;
using U3 = std::unique_ptr<VT, GenericConvertingDeleter<0> &>;
using U4 = std::unique_ptr<VT, GenericConvertingDeleter<1> >;
using U5 = std::unique_ptr<VT, GenericConvertingDeleter<1> const&>;
static_assert(!std::is_constructible<U1, U2&&>::value, "");
static_assert(!std::is_constructible<U1, U3&&>::value, "");
static_assert(!std::is_constructible<U1, U4&&>::value, "");
static_assert(!std::is_constructible<U1, U5&&>::value, "");
using U1C = std::unique_ptr<const VT, GenericConvertingDeleter<0> const&>;
static_assert(std::is_nothrow_constructible<U1C, U1&&>::value, "");
}
{ // Test that non-reference destination deleters can be constructed
// from any source deleter type with a sutible conversion. Including
// reference types.
using U1 = std::unique_ptr<VT, GenericConvertingDeleter<0> >;
using U2 = std::unique_ptr<VT, GenericConvertingDeleter<0> &>;
using U3 = std::unique_ptr<VT, GenericConvertingDeleter<0> const &>;
using U4 = std::unique_ptr<VT, GenericConvertingDeleter<1> >;
using U5 = std::unique_ptr<VT, GenericConvertingDeleter<1> &>;
using U6 = std::unique_ptr<VT, GenericConvertingDeleter<1> const&>;
static_assert(std::is_constructible<U1, U2&&>::value, "");
static_assert(std::is_constructible<U1, U3&&>::value, "");
static_assert(std::is_constructible<U1, U4&&>::value, "");
static_assert(std::is_constructible<U1, U5&&>::value, "");
static_assert(std::is_constructible<U1, U6&&>::value, "");
}
#endif
}
template <bool IsArray>
void test_noexcept() {
#if TEST_STD_VER >= 11
typedef typename std::conditional<IsArray, A[], A>::type VT;
{
typedef std::unique_ptr<const VT> APtr;
typedef std::unique_ptr<VT> BPtr;
static_assert(std::is_nothrow_constructible<APtr, BPtr>::value, "");
}
{
typedef std::unique_ptr<const VT, CDeleter<const VT> > APtr;
typedef std::unique_ptr<VT, CDeleter<VT> > BPtr;
static_assert(std::is_nothrow_constructible<APtr, BPtr>::value, "");
}
{
typedef std::unique_ptr<const VT, NCDeleter<const VT>&> APtr;
typedef std::unique_ptr<VT, NCDeleter<const VT>&> BPtr;
static_assert(std::is_nothrow_constructible<APtr, BPtr>::value, "");
}
{
typedef std::unique_ptr<const VT, const NCConstDeleter<const VT>&> APtr;
typedef std::unique_ptr<VT, const NCConstDeleter<const VT>&> BPtr;
static_assert(std::is_nothrow_constructible<APtr, BPtr>::value, "");
}
#endif
}
int main() {
{
test_sfinae</*IsArray*/false>();
test_noexcept<false>();
}
{
test_sfinae</*IsArray*/true>();
test_noexcept<true>();
}
}
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