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//***************************************************************************
// examples/helloxx/main.c
//
// Copyright (C) 2009 Gregory Nutt. All rights reserved.
// Author: Gregory Nutt <spudmonkey@racsa.co.cr>
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
// 3. Neither the name NuttX nor the names of its contributors may be
// used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//***************************************************************************
//***************************************************************************
// Included Files
//***************************************************************************
#include <nuttx/config.h>
#include <nuttx/init.h>
#include <cstdio>
#include <debug.h>
//***************************************************************************
// Definitions
//***************************************************************************
//***************************************************************************
// Private Classes
//***************************************************************************
class CHelloWorld
{
public:
CHelloWorld(void) : mSecret(42) { lldbg("Constructor\n"); };
~CHelloWorld(void) { lldbg("Destructor\n"); };
bool HelloWorld(void)
{
if (mSecret != 42)
{
printf("CONSTRUCTION FAILED!\n");
return false;
}
else
{
printf("Hello, World!!\n");
return true;
}
};
private:
int mSecret;
};
//***************************************************************************
// Private Data
//***************************************************************************
#ifndef CONFIG_EXAMPLE_HELLOXX_NOSTATICCONST
static CHelloWorld g_HelloWorld;
#endif
//***************************************************************************
// Public Functions
//***************************************************************************
//***************************************************************************
// user_initialize
//***************************************************************************
#ifndef CONFIG_HAVE_WEAKFUNCTIONS
void user_initialize(void)
{
// Stub that must be provided only if the toolchain does not support weak
// functions.
}
#endif
//***************************************************************************
// user_start
//***************************************************************************
int user_start(int argc, char *argv[])
{
#ifndef CONFIG_EXAMPLE_HELLOXX_NOSTACKCONST
CHelloWorld HelloWorld;
#endif
CHelloWorld *pHelloWorld = new CHelloWorld;
printf("Saying hello from the dynamically constructed instance\n");
pHelloWorld->HelloWorld();
#ifndef CONFIG_EXAMPLE_HELLOXX_NOSTACKCONST
printf("Saying hello from the statically constructed instance\n");
HelloWorld.HelloWorld();
#endif
#ifndef CONFIG_EXAMPLE_HELLOXX_NOSTATICCONST
printf("Saying hello from the statically constructed instance\n");
g_HelloWorld.HelloWorld();
#endif
delete pHelloWorld;
return 0;
}
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