From f47e88adb36d0be24b6179c930729dc35b7e42ae Mon Sep 17 00:00:00 2001
From: i80287 <addmlbx@gmail.com>
Date: Sun, 10 Nov 2024 22:49:57 +0300
Subject: [PATCH] update RBTree and update modules compilation condition in the
 tests

---
 bstrees/RBTree.cppm         | 14 +++++++-------
 bstrees/RBTreeTests.cpp     |  6 +++++-
 tests/CMakeTestsUtils.cmake |  2 +-
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/bstrees/RBTree.cppm b/bstrees/RBTree.cppm
index a5668bc..f55811e 100644
--- a/bstrees/RBTree.cppm
+++ b/bstrees/RBTree.cppm
@@ -515,9 +515,11 @@ private:
 
     constexpr void AssertBeginInvariants() const noexcept {
         RBTREE_ASSERT_INVARIANT(GetBeginUnchecked() != nullptr);
+#ifdef RBTREE_DEBUG
         const auto invariants_if_not_empty =
             Size() >= 1 && GetBeginUnchecked() != GetEndUnchecked();
         const auto invariants_if_empty = Size() == 0 && GetBeginUnchecked() == GetEndUnchecked();
+#endif
         RBTREE_ASSERT_INVARIANT(invariants_if_not_empty ^ invariants_if_empty);
         RBTREE_ASSERT_INVARIANT(GetBeginUnchecked() == GetEndUnchecked() ||
                                 GetBeginUnchecked()->Left() == nullptr);
@@ -1187,7 +1189,6 @@ class RBTreeContainer : private RBTreeContainerImpl {
     using Base = RBTreeContainerImpl;
 
 protected:
-    using Base::Base;
     using size_type              = std::size_t;
     using difference_type        = std::ptrdiff_t;
     using const_iterator         = Iterator<KeyType, /*IsConstIterator = */ true, DerivedRBTree>;
@@ -1208,7 +1209,7 @@ protected:
 
     static constexpr bool kIsNodeNoexceptDestructible = std::is_nothrow_destructible_v<NodeType>;
 
-    constexpr RBTreeContainer() = default;
+    constexpr RBTreeContainer() noexcept = default;
     constexpr RBTreeContainer(const RBTreeContainer &other) : Base(CloneTree(other)) {}
     constexpr RBTreeContainer &operator=(const RBTreeContainer &other) ATTRIBUTE_LIFETIME_BOUND {
         // NOLINTNEXTLINE(cppcoreguidelines-c-copy-assignment-signature)
@@ -1647,7 +1648,6 @@ public:
     using node_type              = typename Base::node_type;
     using allocator_type         = typename Base::allocator_type;
     using Base::back;
-    using Base::Base;
     using Base::begin;
     using Base::cbegin;
     using Base::cend;
@@ -1662,10 +1662,10 @@ public:
     using Base::rend;
     using Base::size;
 
-    RBTree(std::initializer_list<KeyType> list) : RBTree(list.begin(), list.end()) {}
-
-    template <std::input_iterator Iter>
-    RBTree(Iter begin_iter, Iter end_iter) {
+    constexpr RBTree() noexcept = default;
+    constexpr RBTree(std::initializer_list<KeyType> list) : RBTree(list.begin(), list.end()) {}
+    template <std::input_iterator Iter, std::sentinel_for<Iter> SentinelIter>
+    constexpr RBTree(Iter begin_iter, SentinelIter end_iter) {
         for (; begin_iter != end_iter; ++begin_iter) {
             insert(*begin_iter);  // TODO: insert_hint
         }
diff --git a/bstrees/RBTreeTests.cpp b/bstrees/RBTreeTests.cpp
index d0e9a86..cf53cd9 100644
--- a/bstrees/RBTreeTests.cpp
+++ b/bstrees/RBTreeTests.cpp
@@ -151,13 +151,17 @@ void test_on_range(const Range1 &nums, const Range2 &not_in_nums) {
         static_assert(std::is_same_v<decltype(std::move(t1)), RBTree<T> &&>);
         RBTree<T> t2 = std::move(t1);
         compare(t2, checker);
-        t1 = std::move(t2);
+        RBTree<T> &t1_ref = t1 = std::move(t2);
+        assert(std::addressof(t1_ref) == std::addressof(t1));
         compare(t1, checker);
         t2.clear();
         t2.swap(t1);
         compare(t2, checker);
         t2.swap(t1);
         compare(t1, checker);
+        RBTree<T> &t2_ref = t2 = t1;
+        assert(std::addressof(t2_ref) == std::addressof(t2));
+        compare(t2, checker);
     };
 
     RBTree<T> t;
diff --git a/tests/CMakeTestsUtils.cmake b/tests/CMakeTestsUtils.cmake
index 7a5d522..eed5979 100644
--- a/tests/CMakeTestsUtils.cmake
+++ b/tests/CMakeTestsUtils.cmake
@@ -495,10 +495,10 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     endif()
     if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 14.0.0)
         list(APPEND COMPILER_SUPPORTED_C_VERSIONS 23)
-        set(COMPILER_SUPPORTS_MODULES True)
     endif()
     if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 15.0.0)
         list(APPEND COMPILER_SUPPORTED_CXX_VERSIONS 26)
+        set(COMPILER_SUPPORTS_MODULES True)
     endif()
 elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
     configure_msvc_or_clang_msvc_options()