forked from Archive/PX4-Autopilot
130 lines
4.5 KiB
C++
130 lines
4.5 KiB
C++
//***************************************************************************
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// examples/helloxx/main.c
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//
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// Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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// 3. Neither the name NuttX nor the names of its contributors may be
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// used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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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 <nuttx/init.h>
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#include <cstdio>
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#include <debug.h>
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//***************************************************************************
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// Definitions
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//***************************************************************************
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//***************************************************************************
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// Private Classes
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//***************************************************************************
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class CHelloWorld
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{
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public:
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CHelloWorld(void) : mSecret(42) { lldbg("Constructor\n"); };
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~CHelloWorld(void) { lldbg("Destructor\n"); };
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bool HelloWorld(void)
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{
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if (mSecret != 42)
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{
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printf("CHelloWorld::HelloWorld: CONSTRUCTION FAILED!\n");
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return false;
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}
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else
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{
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printf("CHelloWorld::HelloWorld: Hello, World!!\n");
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return true;
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}
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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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#ifndef CONFIG_EXAMPLES_HELLOXX_NOSTATICCONST
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static CHelloWorld 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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// user_start
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//***************************************************************************
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/****************************************************************************
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* Name: user_start/nxhello_main
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****************************************************************************/
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#ifdef CONFIG_EXAMPLES_HELLOXX_BUILTIN
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extern "C" int helloxx_main(int argc, char *argv[]);
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# define MAIN_NAME helloxx_main
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# define MAIN_STRING "helloxx_main: "
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#else
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# define MAIN_NAME user_start
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# define MAIN_STRING "user_start: "
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#endif
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int MAIN_NAME(int argc, char *argv[])
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{
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#ifndef CONFIG_EXAMPLES_HELLOXX_NOSTACKCONST
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CHelloWorld HelloWorld;
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#endif
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CHelloWorld *pHelloWorld = new CHelloWorld;
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printf(MAIN_STRING "Saying hello from the dynamically constructed instance\n");
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pHelloWorld->HelloWorld();
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#ifndef CONFIG_EXAMPLES_HELLOXX_NOSTACKCONST
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printf(MAIN_STRING "Saying hello from the instance constructed on the stack\n");
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HelloWorld.HelloWorld();
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#endif
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#ifndef CONFIG_EXAMPLES_HELLOXX_NOSTATICCONST
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printf(MAIN_STRING "Saying hello 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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