git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1381061 13f79535-47bb-0310-9956-ffa450edef68

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diff --git a/sca-cpp/branches/lightweight-sca/kernel/lambda-test.cpp b/sca-cpp/branches/lightweight-sca/kernel/lambda-test.cpp
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/* $Rev$ $Date$ */
+
+/**
+ * Test C++0x lambda expressions.
+ */
+
+#include <assert.h>
+#include "function.hpp"
+#include "sstream.hpp"
+#include "fstream.hpp"
+#include "perf.hpp"
+
+namespace tuscany {
+
+#ifdef HAS_CXX0X_LAMBDAS
+
+const lambda<const int(const int)> inc(const int i) {
+    return [=](const int x)->const int {
+        return x + i;
+    };
+}
+
+const int square(const int x) {
+    return x * x;
+}
+
+int mapLambda(const lambda<const int(const int)> f, int v) {
+    return f(v);
+}
+
+bool testLambda() {
+    const lambda<const int(const int)> sq  = square;
+    assert(sq(2) == 4);
+    assert(mapLambda(square, 2) == 4);
+    assert(mapLambda(sq, 2) == 4);
+    assert(mapLambda([](const int x)->const int { return x * x; }, 2) == 4);
+
+    const lambda<int(int)> incf = inc(10);
+    assert(incf(1) == 11);
+    assert(mapLambda(incf, 1) == 11);
+    assert(mapLambda(inc(10), 1) == 11);
+
+    lambda<const int(const int)> l;
+    l = incf;
+    assert(l(1) == 11);
+    l = square;
+    assert(l(2) == 4);
+    return true;
+}
+
+const double fib_aux(const double n, const double a, const double b) {
+    return n == 0.0? a : fib_aux(n - 1.0, b, a + b);
+}
+
+const bool fibMapPerf() {
+    list<double> s = seq(0.0, 4999.0);
+    list<double> r = map<double, double>([](const double n)->const double { return fib_aux(n, 0.0, 1.0); }, s);
+    assert(5000 == length(r));
+    return true;
+}
+
+bool testCppPerf() {
+    cout << "Fibonacci map test " << (time([]()->const bool { return fibMapPerf(); }, 1, 1) / 5000) << " ms" << endl;
+    return true;
+}
+
+#endif
+}
+
+int main() {
+    tuscany::gc_scoped_pool p;
+    tuscany::cout << "Testing..." << tuscany::endl;
+
+#ifdef HAS_CXX0X_LAMBDAS
+    tuscany::testLambda();
+    tuscany::testCppPerf();
+#else
+    tuscany::cout << "Skipped C++0x lambda tests" << tuscany::endl;
+#endif
+
+    tuscany::cout << "OK" << tuscany::endl;
+
+    return 0;
+}