f161b1b526
This PR refactors the tests and fix some problems: - Refactor similar tests using `types::for_each` to remove redundant code; - Explicitly include the missing header `type_algorithms.h` instead of relying on a transitive include; - Fix the incorrect constexpr declaration in `rotate.pass.cpp`, where the `test()` function is incorrectly defined as `TEST_CONSTEXPR_CXX17`, which is wrong since `std::rotate()` becomes constexpr only since C++20.
442 lines
13 KiB
C++
442 lines
13 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <algorithm>
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// template<ShuffleIterator Iter>
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// Iter rotate(Iter first, Iter middle, Iter last); // constexpr since C++20
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#include <algorithm>
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#include <cassert>
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#include <memory>
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#include <type_traits>
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#include "test_macros.h"
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#include "test_iterators.h"
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#include "type_algorithms.h"
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struct TestIter {
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template <class Iter>
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TEST_CONSTEXPR_CXX20 void operator()() const {
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int ia[] = {0};
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const int sa = static_cast<int>(sizeof(ia) / sizeof(ia[0]));
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Iter r = std::rotate(Iter(ia), Iter(ia), Iter(ia));
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assert(base(r) == ia);
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assert(ia[0] == 0);
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r = std::rotate(Iter(ia), Iter(ia), Iter(ia + sa));
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assert(base(r) == ia + sa);
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assert(ia[0] == 0);
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r = std::rotate(Iter(ia), Iter(ia + sa), Iter(ia + sa));
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assert(base(r) == ia);
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assert(ia[0] == 0);
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int ib[] = {0, 1};
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const int sb = static_cast<int>(sizeof(ib) / sizeof(ib[0]));
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r = std::rotate(Iter(ib), Iter(ib), Iter(ib + sb));
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assert(base(r) == ib + sb);
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assert(ib[0] == 0);
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assert(ib[1] == 1);
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r = std::rotate(Iter(ib), Iter(ib + 1), Iter(ib + sb));
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assert(base(r) == ib + 1);
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assert(ib[0] == 1);
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assert(ib[1] == 0);
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r = std::rotate(Iter(ib), Iter(ib + sb), Iter(ib + sb));
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assert(base(r) == ib);
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assert(ib[0] == 1);
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assert(ib[1] == 0);
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int ic[] = {0, 1, 2};
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const int sc = static_cast<int>(sizeof(ic) / sizeof(ic[0]));
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r = std::rotate(Iter(ic), Iter(ic), Iter(ic + sc));
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assert(base(r) == ic + sc);
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assert(ic[0] == 0);
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assert(ic[1] == 1);
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assert(ic[2] == 2);
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r = std::rotate(Iter(ic), Iter(ic + 1), Iter(ic + sc));
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assert(base(r) == ic + 2);
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assert(ic[0] == 1);
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assert(ic[1] == 2);
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assert(ic[2] == 0);
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r = std::rotate(Iter(ic), Iter(ic + 2), Iter(ic + sc));
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assert(base(r) == ic + 1);
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assert(ic[0] == 0);
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assert(ic[1] == 1);
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assert(ic[2] == 2);
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r = std::rotate(Iter(ic), Iter(ic + sc), Iter(ic + sc));
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assert(base(r) == ic);
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assert(ic[0] == 0);
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assert(ic[1] == 1);
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assert(ic[2] == 2);
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int id[] = {0, 1, 2, 3};
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const int sd = static_cast<int>(sizeof(id) / sizeof(id[0]));
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r = std::rotate(Iter(id), Iter(id), Iter(id + sd));
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assert(base(r) == id + sd);
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assert(id[0] == 0);
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assert(id[1] == 1);
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assert(id[2] == 2);
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assert(id[3] == 3);
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r = std::rotate(Iter(id), Iter(id + 1), Iter(id + sd));
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assert(base(r) == id + 3);
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assert(id[0] == 1);
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assert(id[1] == 2);
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assert(id[2] == 3);
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assert(id[3] == 0);
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r = std::rotate(Iter(id), Iter(id + 2), Iter(id + sd));
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assert(base(r) == id + 2);
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assert(id[0] == 3);
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assert(id[1] == 0);
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assert(id[2] == 1);
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assert(id[3] == 2);
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r = std::rotate(Iter(id), Iter(id + 3), Iter(id + sd));
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assert(base(r) == id + 1);
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assert(id[0] == 2);
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assert(id[1] == 3);
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assert(id[2] == 0);
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assert(id[3] == 1);
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r = std::rotate(Iter(id), Iter(id + sd), Iter(id + sd));
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assert(base(r) == id);
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assert(id[0] == 2);
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assert(id[1] == 3);
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assert(id[2] == 0);
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assert(id[3] == 1);
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int ie[] = {0, 1, 2, 3, 4};
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const int se = static_cast<int>(sizeof(ie) / sizeof(ie[0]));
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r = std::rotate(Iter(ie), Iter(ie), Iter(ie + se));
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assert(base(r) == ie + se);
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assert(ie[0] == 0);
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assert(ie[1] == 1);
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assert(ie[2] == 2);
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assert(ie[3] == 3);
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assert(ie[4] == 4);
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r = std::rotate(Iter(ie), Iter(ie + 1), Iter(ie + se));
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assert(base(r) == ie + 4);
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assert(ie[0] == 1);
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assert(ie[1] == 2);
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assert(ie[2] == 3);
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assert(ie[3] == 4);
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assert(ie[4] == 0);
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r = std::rotate(Iter(ie), Iter(ie + 2), Iter(ie + se));
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assert(base(r) == ie + 3);
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assert(ie[0] == 3);
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assert(ie[1] == 4);
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assert(ie[2] == 0);
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assert(ie[3] == 1);
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assert(ie[4] == 2);
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r = std::rotate(Iter(ie), Iter(ie + 3), Iter(ie + se));
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assert(base(r) == ie + 2);
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assert(ie[0] == 1);
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assert(ie[1] == 2);
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assert(ie[2] == 3);
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assert(ie[3] == 4);
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assert(ie[4] == 0);
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r = std::rotate(Iter(ie), Iter(ie + 4), Iter(ie + se));
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assert(base(r) == ie + 1);
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assert(ie[0] == 0);
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assert(ie[1] == 1);
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assert(ie[2] == 2);
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assert(ie[3] == 3);
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assert(ie[4] == 4);
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r = std::rotate(Iter(ie), Iter(ie + se), Iter(ie + se));
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assert(base(r) == ie);
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assert(ie[0] == 0);
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assert(ie[1] == 1);
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assert(ie[2] == 2);
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assert(ie[3] == 3);
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assert(ie[4] == 4);
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int ig[] = {0, 1, 2, 3, 4, 5};
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const int sg = static_cast<int>(sizeof(ig) / sizeof(ig[0]));
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r = std::rotate(Iter(ig), Iter(ig), Iter(ig + sg));
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assert(base(r) == ig + sg);
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assert(ig[0] == 0);
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assert(ig[1] == 1);
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assert(ig[2] == 2);
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assert(ig[3] == 3);
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assert(ig[4] == 4);
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assert(ig[5] == 5);
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r = std::rotate(Iter(ig), Iter(ig + 1), Iter(ig + sg));
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assert(base(r) == ig + 5);
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assert(ig[0] == 1);
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assert(ig[1] == 2);
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assert(ig[2] == 3);
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assert(ig[3] == 4);
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assert(ig[4] == 5);
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assert(ig[5] == 0);
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r = std::rotate(Iter(ig), Iter(ig + 2), Iter(ig + sg));
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assert(base(r) == ig + 4);
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assert(ig[0] == 3);
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assert(ig[1] == 4);
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assert(ig[2] == 5);
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assert(ig[3] == 0);
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assert(ig[4] == 1);
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assert(ig[5] == 2);
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r = std::rotate(Iter(ig), Iter(ig + 3), Iter(ig + sg));
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assert(base(r) == ig + 3);
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assert(ig[0] == 0);
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assert(ig[1] == 1);
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assert(ig[2] == 2);
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assert(ig[3] == 3);
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assert(ig[4] == 4);
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assert(ig[5] == 5);
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r = std::rotate(Iter(ig), Iter(ig + 4), Iter(ig + sg));
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assert(base(r) == ig + 2);
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assert(ig[0] == 4);
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assert(ig[1] == 5);
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assert(ig[2] == 0);
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assert(ig[3] == 1);
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assert(ig[4] == 2);
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assert(ig[5] == 3);
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r = std::rotate(Iter(ig), Iter(ig + 5), Iter(ig + sg));
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assert(base(r) == ig + 1);
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assert(ig[0] == 3);
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assert(ig[1] == 4);
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assert(ig[2] == 5);
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assert(ig[3] == 0);
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assert(ig[4] == 1);
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assert(ig[5] == 2);
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r = std::rotate(Iter(ig), Iter(ig + sg), Iter(ig + sg));
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assert(base(r) == ig);
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assert(ig[0] == 3);
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assert(ig[1] == 4);
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assert(ig[2] == 5);
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assert(ig[3] == 0);
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assert(ig[4] == 1);
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assert(ig[5] == 2);
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}
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};
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#if TEST_STD_VER >= 11
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struct TestUniquePtr {
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template <class Iter>
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TEST_CONSTEXPR_CXX23 void operator()() const {
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std::unique_ptr<int> ia[1];
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const int sa = static_cast<int>(sizeof(ia) / sizeof(ia[0]));
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for (int i = 0; i < sa; ++i)
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ia[i].reset(new int(i));
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Iter r = std::rotate(Iter(ia), Iter(ia), Iter(ia));
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assert(base(r) == ia);
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assert(*ia[0] == 0);
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r = std::rotate(Iter(ia), Iter(ia), Iter(ia + sa));
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assert(base(r) == ia + sa);
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assert(*ia[0] == 0);
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r = std::rotate(Iter(ia), Iter(ia + sa), Iter(ia + sa));
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assert(base(r) == ia);
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assert(*ia[0] == 0);
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std::unique_ptr<int> ib[2];
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const int sb = static_cast<int>(sizeof(ib) / sizeof(ib[0]));
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for (int i = 0; i < sb; ++i)
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ib[i].reset(new int(i));
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r = std::rotate(Iter(ib), Iter(ib), Iter(ib + sb));
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assert(base(r) == ib + sb);
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assert(*ib[0] == 0);
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assert(*ib[1] == 1);
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r = std::rotate(Iter(ib), Iter(ib + 1), Iter(ib + sb));
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assert(base(r) == ib + 1);
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assert(*ib[0] == 1);
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assert(*ib[1] == 0);
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r = std::rotate(Iter(ib), Iter(ib + sb), Iter(ib + sb));
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assert(base(r) == ib);
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assert(*ib[0] == 1);
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assert(*ib[1] == 0);
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std::unique_ptr<int> ic[3];
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const int sc = static_cast<int>(sizeof(ic) / sizeof(ic[0]));
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for (int i = 0; i < sc; ++i)
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ic[i].reset(new int(i));
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r = std::rotate(Iter(ic), Iter(ic), Iter(ic + sc));
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assert(base(r) == ic + sc);
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assert(*ic[0] == 0);
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assert(*ic[1] == 1);
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assert(*ic[2] == 2);
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r = std::rotate(Iter(ic), Iter(ic + 1), Iter(ic + sc));
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assert(base(r) == ic + 2);
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assert(*ic[0] == 1);
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assert(*ic[1] == 2);
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assert(*ic[2] == 0);
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r = std::rotate(Iter(ic), Iter(ic + 2), Iter(ic + sc));
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assert(base(r) == ic + 1);
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assert(*ic[0] == 0);
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assert(*ic[1] == 1);
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assert(*ic[2] == 2);
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r = std::rotate(Iter(ic), Iter(ic + sc), Iter(ic + sc));
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assert(base(r) == ic);
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assert(*ic[0] == 0);
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assert(*ic[1] == 1);
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assert(*ic[2] == 2);
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std::unique_ptr<int> id[4];
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const int sd = static_cast<int>(sizeof(id) / sizeof(id[0]));
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for (int i = 0; i < sd; ++i)
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id[i].reset(new int(i));
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r = std::rotate(Iter(id), Iter(id), Iter(id + sd));
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assert(base(r) == id + sd);
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assert(*id[0] == 0);
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assert(*id[1] == 1);
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assert(*id[2] == 2);
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assert(*id[3] == 3);
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r = std::rotate(Iter(id), Iter(id + 1), Iter(id + sd));
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assert(base(r) == id + 3);
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assert(*id[0] == 1);
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assert(*id[1] == 2);
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assert(*id[2] == 3);
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assert(*id[3] == 0);
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r = std::rotate(Iter(id), Iter(id + 2), Iter(id + sd));
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assert(base(r) == id + 2);
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assert(*id[0] == 3);
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assert(*id[1] == 0);
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assert(*id[2] == 1);
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assert(*id[3] == 2);
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r = std::rotate(Iter(id), Iter(id + 3), Iter(id + sd));
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assert(base(r) == id + 1);
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assert(*id[0] == 2);
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assert(*id[1] == 3);
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assert(*id[2] == 0);
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assert(*id[3] == 1);
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r = std::rotate(Iter(id), Iter(id + sd), Iter(id + sd));
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assert(base(r) == id);
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assert(*id[0] == 2);
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assert(*id[1] == 3);
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assert(*id[2] == 0);
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assert(*id[3] == 1);
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std::unique_ptr<int> ie[5];
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const int se = static_cast<int>(sizeof(ie) / sizeof(ie[0]));
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for (int i = 0; i < se; ++i)
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ie[i].reset(new int(i));
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r = std::rotate(Iter(ie), Iter(ie), Iter(ie + se));
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assert(base(r) == ie + se);
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assert(*ie[0] == 0);
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assert(*ie[1] == 1);
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assert(*ie[2] == 2);
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assert(*ie[3] == 3);
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assert(*ie[4] == 4);
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r = std::rotate(Iter(ie), Iter(ie + 1), Iter(ie + se));
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assert(base(r) == ie + 4);
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assert(*ie[0] == 1);
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assert(*ie[1] == 2);
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assert(*ie[2] == 3);
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assert(*ie[3] == 4);
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assert(*ie[4] == 0);
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r = std::rotate(Iter(ie), Iter(ie + 2), Iter(ie + se));
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assert(base(r) == ie + 3);
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assert(*ie[0] == 3);
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assert(*ie[1] == 4);
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assert(*ie[2] == 0);
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assert(*ie[3] == 1);
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assert(*ie[4] == 2);
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r = std::rotate(Iter(ie), Iter(ie + 3), Iter(ie + se));
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assert(base(r) == ie + 2);
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assert(*ie[0] == 1);
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assert(*ie[1] == 2);
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assert(*ie[2] == 3);
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assert(*ie[3] == 4);
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assert(*ie[4] == 0);
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r = std::rotate(Iter(ie), Iter(ie + 4), Iter(ie + se));
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assert(base(r) == ie + 1);
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assert(*ie[0] == 0);
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assert(*ie[1] == 1);
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assert(*ie[2] == 2);
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assert(*ie[3] == 3);
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assert(*ie[4] == 4);
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r = std::rotate(Iter(ie), Iter(ie + se), Iter(ie + se));
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assert(base(r) == ie);
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assert(*ie[0] == 0);
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assert(*ie[1] == 1);
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assert(*ie[2] == 2);
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assert(*ie[3] == 3);
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assert(*ie[4] == 4);
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std::unique_ptr<int> ig[6];
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const int sg = static_cast<int>(sizeof(ig) / sizeof(ig[0]));
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for (int i = 0; i < sg; ++i)
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ig[i].reset(new int(i));
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r = std::rotate(Iter(ig), Iter(ig), Iter(ig + sg));
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assert(base(r) == ig + sg);
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assert(*ig[0] == 0);
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assert(*ig[1] == 1);
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assert(*ig[2] == 2);
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assert(*ig[3] == 3);
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assert(*ig[4] == 4);
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assert(*ig[5] == 5);
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r = std::rotate(Iter(ig), Iter(ig + 1), Iter(ig + sg));
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assert(base(r) == ig + 5);
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assert(*ig[0] == 1);
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assert(*ig[1] == 2);
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assert(*ig[2] == 3);
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assert(*ig[3] == 4);
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assert(*ig[4] == 5);
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assert(*ig[5] == 0);
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r = std::rotate(Iter(ig), Iter(ig + 2), Iter(ig + sg));
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assert(base(r) == ig + 4);
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assert(*ig[0] == 3);
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assert(*ig[1] == 4);
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assert(*ig[2] == 5);
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assert(*ig[3] == 0);
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assert(*ig[4] == 1);
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assert(*ig[5] == 2);
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r = std::rotate(Iter(ig), Iter(ig + 3), Iter(ig + sg));
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assert(base(r) == ig + 3);
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assert(*ig[0] == 0);
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assert(*ig[1] == 1);
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assert(*ig[2] == 2);
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assert(*ig[3] == 3);
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assert(*ig[4] == 4);
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assert(*ig[5] == 5);
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r = std::rotate(Iter(ig), Iter(ig + 4), Iter(ig + sg));
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assert(base(r) == ig + 2);
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assert(*ig[0] == 4);
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assert(*ig[1] == 5);
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assert(*ig[2] == 0);
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assert(*ig[3] == 1);
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assert(*ig[4] == 2);
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assert(*ig[5] == 3);
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r = std::rotate(Iter(ig), Iter(ig + 5), Iter(ig + sg));
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assert(base(r) == ig + 1);
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assert(*ig[0] == 3);
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assert(*ig[1] == 4);
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assert(*ig[2] == 5);
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assert(*ig[3] == 0);
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assert(*ig[4] == 1);
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assert(*ig[5] == 2);
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r = std::rotate(Iter(ig), Iter(ig + sg), Iter(ig + sg));
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assert(base(r) == ig);
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assert(*ig[0] == 3);
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assert(*ig[1] == 4);
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assert(*ig[2] == 5);
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assert(*ig[3] == 0);
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assert(*ig[4] == 1);
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assert(*ig[5] == 2);
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}
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};
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#endif // TEST_STD_VER >= 11
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TEST_CONSTEXPR_CXX20 bool test() {
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types::for_each(types::forward_iterator_list<int*>(), TestIter());
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#if TEST_STD_VER >= 11
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if (TEST_STD_VER >= 23 || !TEST_IS_CONSTANT_EVALUATED)
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types::for_each(types::forward_iterator_list<std::unique_ptr<int>*>(), TestUniquePtr());
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**) {
|
|
test();
|
|
#if TEST_STD_VER >= 20
|
|
static_assert(test());
|
|
#endif
|
|
|
|
return 0;
|
|
}
|