145 lines
4.2 KiB
C++
145 lines
4.2 KiB
C++
//***************************************************************************
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// apps/examples/etl/etl_main.cxx
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//
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// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership. The
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// ASF licenses this file to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance with the
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// 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, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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//
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//***************************************************************************
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//***************************************************************************
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// Included Files
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//***************************************************************************
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#include <nuttx/config.h>
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#include <cstdio>
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#include <debug.h>
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#include <etl/vector.h>
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#include <etl/numeric.h>
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//***************************************************************************
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// Definitions
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//***************************************************************************
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// Configuration ************************************************************
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// Debug ********************************************************************
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// Non-standard debug that may be enabled just for testing the constructors
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#ifdef CONFIG_DEBUG_FEATURES
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# define CONFIG_DEBUG_CXX
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#endif
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#ifdef CONFIG_DEBUG_CXX
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# define cxxinfo _info
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#else
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# define cxxinfo(x...)
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#endif
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typedef etl::vector<int, 10> Data;
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//***************************************************************************
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// Private Classes
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//***************************************************************************
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class CETL
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{
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public:
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CETL(void) : mSecret(42)
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{
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cxxinfo("Constructor: mSecret=%d\n", mSecret);
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}
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~CETL(void)
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{
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cxxinfo("Destructor\n");
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}
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bool HelloWorld(void)
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{
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cxxinfo("HelloWorld: mSecret=%d\n", mSecret);
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// Declare the vector instances.
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etl::vector<int, 10> v1(10);
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etl::vector<int, 20> v2(20);
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etl::iota(v1.begin(), v1.end(), 0); // Fill with 0 through 9
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etl::iota(v2.begin(), v2.end(), 10); // Fill with 10 through 29
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printf("v1 with 0 through 9\n");
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for (auto& it : v1) {
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printf("%i ", it);
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}
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printf("\n");
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printf("v2 with 10 through 29\n");
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for (auto& it : v2) {
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printf("%i ", it);
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}
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printf("\n");
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return true;
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}
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private:
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int mSecret;
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};
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//***************************************************************************
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// Private Data
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//***************************************************************************
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// Define a statically constructed CHellowWorld instance if C++ static
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// initializers are supported by the platform
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#ifdef CONFIG_HAVE_CXXINITIALIZE
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static CETL g_HelloWorld;
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#endif
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//***************************************************************************
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// Public Functions
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//***************************************************************************
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/****************************************************************************
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* Name: etl_main
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****************************************************************************/
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extern "C" int main(int argc, FAR char *argv[])
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{
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// Exercise an explicitly instantiated C++ object
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CETL *pHelloWorld = new CETL;
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printf("etl_main: Testing ETL from the dynamically constructed instance\n");
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pHelloWorld->HelloWorld();
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// Exercise an C++ object instantiated on the stack
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CETL HelloWorld;
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printf("etl_main: Testing ETL from the instance constructed on the stack\n");
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HelloWorld.HelloWorld();
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// Exercise an statically constructed C++ object
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#ifdef CONFIG_HAVE_CXXINITIALIZE
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printf("etl_main: Testing ETL from the statically constructed instance\n");
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g_HelloWorld.HelloWorld();
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#endif
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delete pHelloWorld;
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return 0;
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}
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