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-rw-r--r--tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp28
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp b/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp
index deb3b68c5c..df42b5dea9 100644
--- a/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp
+++ b/tests/auto/corelib/tools/qlinkedlist/tst_qlinkedlist.cpp
@@ -187,6 +187,7 @@ private slots:
void countInt() const;
void countMovable() const;
void countComplex() const;
+ void cpp17ctad() const;
void emptyInt() const;
void emptyMovable() const;
void emptyComplex() const;
@@ -594,6 +595,33 @@ void tst_QLinkedList::countComplex() const
QCOMPARE(liveCount, Complex::getLiveCount());
}
+void tst_QLinkedList::cpp17ctad() const
+{
+#ifdef __cpp_deduction_guides
+#define QVERIFY_IS_LIST_OF(obj, Type) \
+ QVERIFY2((std::is_same<decltype(obj), QLinkedList<Type>>::value), \
+ QMetaType::typeName(qMetaTypeId<decltype(obj)::value_type>()))
+#define CHECK(Type, One, Two, Three) \
+ do { \
+ const Type v[] = {One, Two, Three}; \
+ QLinkedList v1 = {One, Two, Three}; \
+ QVERIFY_IS_LIST_OF(v1, Type); \
+ QLinkedList v2(v1.begin(), v1.end()); \
+ QVERIFY_IS_LIST_OF(v2, Type); \
+ QLinkedList v3(std::begin(v), std::end(v)); \
+ QVERIFY_IS_LIST_OF(v3, Type); \
+ } while (false) \
+ /*end*/
+ CHECK(int, 1, 2, 3);
+ CHECK(double, 1.0, 2.0, 3.0);
+ CHECK(QString, QStringLiteral("one"), QStringLiteral("two"), QStringLiteral("three"));
+#undef QVERIFY_IS_LIST_OF
+#undef CHECK
+#else
+ QSKIP("This test requires C++17 Constructor Template Argument Deduction support enabled in the compiler.");
+#endif
+}
+
template<typename T>
void tst_QLinkedList::empty() const
{