qt 6.5.1 original

tests/benchmarks/corelib/tools/qstack/CMakeLists.txt

@@ -0,0 +1,14 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_bench_qstack Binary:
+#####################################################################
+
+qt_internal_add_benchmark(tst_bench_qstack
+    SOURCES
+        tst_bench_qstack.cpp
+    LIBRARIES
+        Qt::CorePrivate
+        Qt::Test
+)

tests/benchmarks/corelib/tools/qstack/tst_bench_qstack.cpp

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+// Copyright (C) 2015 Robin Burchell <robin.burchell@viroteck.net>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QStack>
+#include <QDebug>
+#include <QTest>
+
+#include <vector>
+
+class tst_QStack: public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void qstack_push();
+    void qstack_pop();
+    void qstack_pushpopone();
+};
+
+const int N = 1000000;
+
+void tst_QStack::qstack_push()
+{
+    QStack<int> v;
+    QBENCHMARK {
+        for (int i = 0; i != N; ++i)
+            v.push(i);
+        v = QStack<int>();
+    }
+}
+
+void tst_QStack::qstack_pop()
+{
+    QStack<int> v;
+    for (int i = 0; i != N; ++i)
+        v.push(i);
+
+    QBENCHMARK {
+        QStack<int> v2 = v;
+        for (int i = 0; i != N; ++i) {
+            v2.pop();
+        }
+    }
+}
+
+void tst_QStack::qstack_pushpopone()
+{
+    QBENCHMARK {
+        QStack<int> v;
+        for (int i = 0; i != N; ++i) {
+            v.push(0);
+            v.pop();
+        }
+    }
+}
+
+QTEST_MAIN(tst_QStack)
+
+#include "tst_bench_qstack.moc"