c4e98722ca
This fixes thr bug reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108846. Reviewed By: ldionne, #libc Spies: mstorsjo, libcxx-commits Differential Revision: https://reviews.llvm.org/D151953
126 lines
3.4 KiB
C++
126 lines
3.4 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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 && !stdlib=libc++
|
|
// ADDITIONAL_COMPILE_FLAGS(has-fconstexpr-steps): -fconstexpr-steps=2000000
|
|
|
|
// <algorithm>
|
|
|
|
// template<InputIterator InIter, typename OutIter>
|
|
// requires OutputIterator<OutIter, RvalueOf<InIter::reference>::type>
|
|
// OutIter
|
|
// move(InIter first, InIter last, OutIter result);
|
|
|
|
#include <algorithm>
|
|
#include <cassert>
|
|
#include <memory>
|
|
|
|
#include "test_macros.h"
|
|
#include "test_iterators.h"
|
|
|
|
class PaddedBase {
|
|
public:
|
|
TEST_CONSTEXPR PaddedBase(std::int16_t a, std::int8_t b) : a_(a), b_(b) {}
|
|
|
|
std::int16_t a_;
|
|
std::int8_t b_;
|
|
};
|
|
|
|
class Derived : public PaddedBase {
|
|
public:
|
|
TEST_CONSTEXPR Derived(std::int16_t a, std::int8_t b, std::int8_t c) : PaddedBase(a, b), c_(c) {}
|
|
|
|
std::int8_t c_;
|
|
};
|
|
|
|
template <class InIter>
|
|
struct Test {
|
|
template <class OutIter>
|
|
TEST_CONSTEXPR_CXX20 void operator()() {
|
|
const unsigned N = 1000;
|
|
int ia[N] = {};
|
|
for (unsigned i = 0; i < N; ++i)
|
|
ia[i] = i;
|
|
int ib[N] = {0};
|
|
|
|
OutIter r = std::move(InIter(ia), InIter(ia+N), OutIter(ib));
|
|
assert(base(r) == ib+N);
|
|
for (unsigned i = 0; i < N; ++i)
|
|
assert(ia[i] == ib[i]);
|
|
}
|
|
};
|
|
|
|
struct TestOutIters {
|
|
template <class InIter>
|
|
TEST_CONSTEXPR_CXX20 void operator()() {
|
|
types::for_each(
|
|
types::concatenate_t<types::cpp17_input_iterator_list<int*>, types::type_list<cpp17_output_iterator<int*> > >(),
|
|
Test<InIter>());
|
|
}
|
|
};
|
|
|
|
template <class InIter>
|
|
struct Test1 {
|
|
template <class OutIter>
|
|
TEST_CONSTEXPR_CXX23 void operator()() {
|
|
const unsigned N = 100;
|
|
std::unique_ptr<int> ia[N];
|
|
for (unsigned i = 0; i < N; ++i)
|
|
ia[i].reset(new int(i));
|
|
std::unique_ptr<int> ib[N];
|
|
|
|
OutIter r = std::move(InIter(ia), InIter(ia+N), OutIter(ib));
|
|
assert(base(r) == ib+N);
|
|
for (unsigned i = 0; i < N; ++i)
|
|
assert(*ib[i] == static_cast<int>(i));
|
|
}
|
|
};
|
|
|
|
struct Test1OutIters {
|
|
template <class InIter>
|
|
TEST_CONSTEXPR_CXX23 void operator()() {
|
|
types::for_each(types::concatenate_t<types::cpp17_input_iterator_list<std::unique_ptr<int>*>,
|
|
types::type_list<cpp17_output_iterator<std::unique_ptr<int>*> > >(),
|
|
Test1<InIter>());
|
|
}
|
|
};
|
|
|
|
TEST_CONSTEXPR_CXX20 bool test() {
|
|
types::for_each(types::cpp17_input_iterator_list<int*>(), TestOutIters());
|
|
if (TEST_STD_VER >= 23 || !TEST_IS_CONSTANT_EVALUATED)
|
|
types::for_each(types::cpp17_input_iterator_list<std::unique_ptr<int>*>(), Test1OutIters());
|
|
|
|
{ // Make sure that padding bits aren't copied
|
|
Derived src(1, 2, 3);
|
|
Derived dst(4, 5, 6);
|
|
std::move(static_cast<PaddedBase*>(&src), static_cast<PaddedBase*>(&src) + 1, static_cast<PaddedBase*>(&dst));
|
|
assert(dst.a_ == 1);
|
|
assert(dst.b_ == 2);
|
|
assert(dst.c_ == 6);
|
|
}
|
|
|
|
{ // Make sure that overlapping ranges can be copied
|
|
int a[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
|
|
std::move(a + 3, a + 10, a);
|
|
int expected[] = {4, 5, 6, 7, 8, 9, 10, 8, 9, 10};
|
|
assert(std::equal(a, a + 10, expected));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
test();
|
|
#if TEST_STD_VER >= 20
|
|
static_assert(test());
|
|
#endif
|
|
|
|
return 0;
|
|
}
|