1 files changed, 128 insertions, 32 deletions
diff --git a/test/std/containers/sequences/vector/vector.cons/construct_iter_iter_alloc.pass.cpp b/test/std/containers/sequences/vector/vector.cons/construct_iter_iter_alloc.pass.cpp
index b4482ddb2..71743b31d 100644
--- a/test/std/containers/sequences/vector/vector.cons/construct_iter_iter_alloc.pass.cpp
+++ b/test/std/containers/sequences/vector/vector.cons/construct_iter_iter_alloc.pass.cpp
@@ -21,56 +21,152 @@
 #include "test_allocator.h"
 #include "min_allocator.h"
 #include "asan_testing.h"
+#if TEST_STD_VER >= 11
+#include "emplace_constructible.h"
+#include "container_test_types.h"
+#endif
 
 template <class C, class Iterator, class A>
-void
-test(Iterator first, Iterator last, const A& a)
-{
-    C c(first, last, a);
-    LIBCPP_ASSERT(c.__invariants());
-    assert(c.size() == static_cast<std::size_t>(std::distance(first, last)));
-    LIBCPP_ASSERT(is_contiguous_container_asan_correct(c));
-    for (typename C::const_iterator i = c.cbegin(), e = c.cend(); i != e; ++i, ++first)
-        assert(*i == *first);
+void test(Iterator first, Iterator last, const A& a) {
+  C c(first, last, a);
+  LIBCPP_ASSERT(c.__invariants());
+  assert(c.size() == static_cast<std::size_t>(std::distance(first, last)));
+  LIBCPP_ASSERT(is_contiguous_container_asan_correct(c));
+  for (typename C::const_iterator i = c.cbegin(), e = c.cend(); i != e;
+       ++i, ++first)
+    assert(*i == *first);
 }
 
 #if TEST_STD_VER >= 11
 
 template <class T>
-struct implicit_conv_allocator : min_allocator<T>
-{
-    implicit_conv_allocator(void*) {}
-    implicit_conv_allocator(const implicit_conv_allocator&) = default;
+struct implicit_conv_allocator : min_allocator<T> {
+  implicit_conv_allocator(void*) {}
+  implicit_conv_allocator(const implicit_conv_allocator&) = default;
 
-    template <class U>
-    implicit_conv_allocator(implicit_conv_allocator<U>) {}
+  template <class U>
+  implicit_conv_allocator(implicit_conv_allocator<U>) {}
 };
 
 #endif
 
-int main()
-{
-    {
+void basic_tests() {
+  {
     int a[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 1, 0};
-    int* an = a + sizeof(a)/sizeof(a[0]);
+    int* an = a + sizeof(a) / sizeof(a[0]);
     std::allocator<int> alloc;
-    test<std::vector<int> >(input_iterator<const int*>(a), input_iterator<const int*>(an), alloc);
-    test<std::vector<int> >(forward_iterator<const int*>(a), forward_iterator<const int*>(an), alloc);
-    test<std::vector<int> >(bidirectional_iterator<const int*>(a), bidirectional_iterator<const int*>(an), alloc);
-    test<std::vector<int> >(random_access_iterator<const int*>(a), random_access_iterator<const int*>(an), alloc);
+    test<std::vector<int> >(input_iterator<const int*>(a),
+                            input_iterator<const int*>(an), alloc);
+    test<std::vector<int> >(forward_iterator<const int*>(a),
+                            forward_iterator<const int*>(an), alloc);
+    test<std::vector<int> >(bidirectional_iterator<const int*>(a),
+                            bidirectional_iterator<const int*>(an), alloc);
+    test<std::vector<int> >(random_access_iterator<const int*>(a),
+                            random_access_iterator<const int*>(an), alloc);
     test<std::vector<int> >(a, an, alloc);
-    }
+  }
 #if TEST_STD_VER >= 11
-    {
+  {
     int a[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 1, 0};
-    int* an = a + sizeof(a)/sizeof(a[0]);
+    int* an = a + sizeof(a) / sizeof(a[0]);
     min_allocator<int> alloc;
-    test<std::vector<int, min_allocator<int>> >(input_iterator<const int*>(a), input_iterator<const int*>(an), alloc);
-    test<std::vector<int, min_allocator<int>> >(forward_iterator<const int*>(a), forward_iterator<const int*>(an), alloc);
-    test<std::vector<int, min_allocator<int>> >(bidirectional_iterator<const int*>(a), bidirectional_iterator<const int*>(an), alloc);
-    test<std::vector<int, min_allocator<int>> >(random_access_iterator<const int*>(a), random_access_iterator<const int*>(an), alloc);
-    test<std::vector<int, min_allocator<int>> >(a, an, alloc);
-    test<std::vector<int, implicit_conv_allocator<int>> >(a, an, nullptr);
+    test<std::vector<int, min_allocator<int> > >(
+        input_iterator<const int*>(a), input_iterator<const int*>(an), alloc);
+    test<std::vector<int, min_allocator<int> > >(
+        forward_iterator<const int*>(a), forward_iterator<const int*>(an),
+        alloc);
+    test<std::vector<int, min_allocator<int> > >(
+        bidirectional_iterator<const int*>(a),
+        bidirectional_iterator<const int*>(an), alloc);
+    test<std::vector<int, min_allocator<int> > >(
+        random_access_iterator<const int*>(a),
+        random_access_iterator<const int*>(an), alloc);
+    test<std::vector<int, min_allocator<int> > >(a, an, alloc);
+    test<std::vector<int, implicit_conv_allocator<int> > >(a, an, nullptr);
+  }
+#endif
+}
+
+void emplaceable_concept_tests() {
+#if TEST_STD_VER >= 11
+  int arr1[] = {42};
+  int arr2[] = {1, 101, 42};
+  {
+    using T = EmplaceConstructible<int>;
+    using It = forward_iterator<int*>;
+    using Alloc = std::allocator<T>;
+    Alloc a;
+    {
+      std::vector<T> v(It(arr1), It(std::end(arr1)), a);
+      assert(v[0].value == 42);
+    }
+    {
+      std::vector<T> v(It(arr2), It(std::end(arr2)), a);
+      assert(v[0].value == 1);
+      assert(v[1].value == 101);
+      assert(v[2].value == 42);
+    }
+  }
+  {
+    using T = EmplaceConstructibleAndMoveInsertable<int>;
+    using It = input_iterator<int*>;
+    using Alloc = std::allocator<T>;
+    Alloc a;
+    {
+      std::vector<T> v(It(arr1), It(std::end(arr1)), a);
+      assert(v[0].copied == 0);
+      assert(v[0].value == 42);
+    }
+    {
+      std::vector<T> v(It(arr2), It(std::end(arr2)), a);
+      assert(v[0].value == 1);
+      assert(v[1].value == 101);
+      assert(v[2].copied == 0);
+      assert(v[2].value == 42);
     }
+  }
 #endif
 }
+
+void test_ctor_under_alloc() {
+#if TEST_STD_VER >= 11
+  int arr1[] = {42};
+  int arr2[] = {1, 101, 42};
+  {
+    using C = TCT::vector<>;
+    using T = typename C::value_type;
+    using It = forward_iterator<int*>;
+    using Alloc = typename C::allocator_type;
+    Alloc a;
+    {
+      ExpectConstructGuard<int&> G(1);
+      C v(It(arr1), It(std::end(arr1)), a);
+    }
+    {
+      ExpectConstructGuard<int&> G(3);
+      C v(It(arr2), It(std::end(arr2)), a);
+    }
+  }
+  {
+    using C = TCT::vector<>;
+    using T = typename C::value_type;
+    using It = input_iterator<int*>;
+    using Alloc = typename C::allocator_type;
+    Alloc a;
+    {
+      ExpectConstructGuard<int&> G(1);
+      C v(It(arr1), It(std::end(arr1)), a);
+    }
+    {
+      //ExpectConstructGuard<int&> G(3);
+      //C v(It(arr2), It(std::end(arr2)), a);
+    }
+  }
+#endif
+}
+
+int main() {
+  basic_tests();
+  emplaceable_concept_tests(); // See PR34898
+  test_ctor_under_alloc();
+}