ae0b7c0063
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1419985 13f79535-47bb-0310-9956-ffa450edef68
102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/* $Rev$ $Date$ */
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/**
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* Test C++0x lambda expressions.
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*/
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#include <assert.h>
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#include "function.hpp"
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#include "sstream.hpp"
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#include "fstream.hpp"
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#include "perf.hpp"
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namespace tuscany {
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#ifdef HAS_CXX0X_LAMBDAS
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const lambda<const int(const int)> inc(const int i) {
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return [i](const int x)->const int {
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return x + i;
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};
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}
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const int square(const int x) {
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return x * x;
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}
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const int mapLambda(const lambda<const int(const int)> f, int v) {
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return f(v);
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}
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const bool testLambda() {
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const lambda<const int(const int)> sq = square;
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assert(sq(2) == 4);
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assert(mapLambda(square, 2) == 4);
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assert(mapLambda(sq, 2) == 4);
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assert(mapLambda([](const int x)->const int { return x * x; }, 2) == 4);
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const lambda<const int(const int)> incf = inc(10);
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assert(incf(1) == 11);
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assert(mapLambda(incf, 1) == 11);
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assert(mapLambda(inc(10), 1) == 11);
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const lambda<const int(const int)> il(incf);
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assert(il(1) == 11);
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const lambda<const int(const int)> sl(square);
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assert(sl(2) == 4);
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return true;
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}
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const double fib_aux(const double n, const double a, const double b) {
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return n == 0.0? a : fib_aux(n - 1.0, b, a + b);
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}
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const bool fibMapPerf() {
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const list<double> s = seq(0.0, 4999.0);
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const list<double> r = map<double, double>([](const double n)->const double { return fib_aux(n, 0.0, 1.0); }, s);
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assert(5000 == length(r));
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return true;
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}
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const bool testCppPerf() {
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cout << "Fibonacci map test " << (time([]()->const bool { return fibMapPerf(); }, 1, 1) / 5000) << " ms" << endl;
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return true;
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}
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#endif
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}
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int main() {
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const tuscany::gc_scoped_pool p;
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tuscany::cout << "Testing..." << tuscany::endl;
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#ifdef HAS_CXX0X_LAMBDAS
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tuscany::testLambda();
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tuscany::testCppPerf();
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#else
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tuscany::cout << "Skipped C++0x lambda tests" << tuscany::endl;
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#endif
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tuscany::cout << "OK" << tuscany::endl;
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return 0;
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}
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