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@ -1,297 +1,297 @@
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/////////////////////////////////////////////////////////////////////////////
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// examples/elf/tests/helloxx/hello++5.c
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//
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// Copyright (C) 2015 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <gnutt@nuttx.org>
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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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// This is an excessively complex version of "Hello, World" design to
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// illustrate some basic properties of C++:
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//
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// - Building a C++ program
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// - Streams / statically linked libstdc++
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// - Static constructor and destructors (in main program only)
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// - Exception handling
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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 <cstdio>
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#include <iostream>
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#include <string>
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#ifndef NULL
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# define NULL ((void*)0L)
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// Private Classes
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/////////////////////////////////////////////////////////////////////////////
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using namespace std;
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// A hello world sayer class
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class CThingSayer
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{
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const char *szWhatToSay;
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public:
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CThingSayer(void);
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virtual ~CThingSayer(void);
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virtual void Initialize(const char *czSayThis);
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virtual void SayThing(void);
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virtual void ThrowThing(void);
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virtual void ThrowMyThing(const char *czSayThis);
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};
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class MyException: public std::exception
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{
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std::string reason;
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public:
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virtual ~MyException() throw();
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MyException();
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MyException(std::string r);
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virtual const char *what() const throw();
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};
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/////////////////////////////////////////////////////////////////////////////
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// Private Data
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/////////////////////////////////////////////////////////////////////////////
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// A static instance of the CThingSayer class. This instance MUST
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// be constructed by the system BEFORE the program is started at
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// main() and must be destructed by the system AFTER the main()
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// returns to the system
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static CThingSayer MyThingSayer;
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/////////////////////////////////////////////////////////////////////////////
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// MyException Method Implementations
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/////////////////////////////////////////////////////////////////////////////
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MyException::MyException(std::string r = NULL) : reason(r)
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{
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if( r.length() > 0 )
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{
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cout << "MyException(" << r << "): constructing with reason." << endl;
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}
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else
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{
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cout << "MyException(): constructing." << endl;
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}
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}
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MyException::~MyException() throw()
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{
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cout << "~MyException(): destructing." << endl;
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}
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const char *MyException::what() const throw()
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{
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return reason.c_str();
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}
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/////////////////////////////////////////////////////////////////////////////
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// CThingSayer Method Implementations
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/////////////////////////////////////////////////////////////////////////////
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// These are implementations of the methods of the CThingSayer class
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CThingSayer::CThingSayer(void)
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{
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cout << "CThingSayer::CThingSayer: I am!" << endl;
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szWhatToSay = (const char*)NULL;
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}
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CThingSayer::~CThingSayer(void)
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{
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cout << "CThingSayer::~CThingSayer: I cease to be" << endl;
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if (szWhatToSay)
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{
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cout << "CThingSayer::~CThingSayer: I will never say '"
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<< szWhatToSay << "' again" << endl;
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}
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szWhatToSay = (const char*)NULL;
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}
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void CThingSayer::Initialize(const char *czSayThis)
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{
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cout << "CThingSayer::Initialize: When told, I will say '"
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<< czSayThis << "'" << endl;
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szWhatToSay = czSayThis;
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}
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void CThingSayer::SayThing(void)
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{
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cout << "CThingSayer::SayThing: I am now saying '"
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<< szWhatToSay << "'" << endl;
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}
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void CThingSayer::ThrowThing(void)
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{
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cout << "CThingSayer::ThrowThing: I am now throwing an exception." << endl;
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throw exception();
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}
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void CThingSayer::ThrowMyThing(const char *czSayThis = NULL)
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{
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cout << "CThingSayer::ThrowMyThing: I am now throwing an MyException (with reason)." << endl;
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throw MyException( string(czSayThis) );
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}
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/////////////////////////////////////////////////////////////////////////////
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// Public Functions
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/////////////////////////////////////////////////////////////////////////////
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int main(int argc, char **argv)
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{
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// We should see the message from constructor, CThingSayer::CThingSayer(),
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// BEFORE we see the following messages. That is proof that the
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// C++ static initializer is working
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cout << "main: Started" << endl;
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// Tell MyThingSayer that "Hello, World!" is the string to be said
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cout << "main: Calling MyThingSayer.Initialize" << endl;
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MyThingSayer.Initialize("Hello, World!");
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// Tell MyThingSayer to say the thing we told it to say
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cout << "main: Calling MyThingSayer.SayThing" << endl;
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MyThingSayer.SayThing();
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// Test Static object throwing std::exception located in flash
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try
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{
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cout << "main: Calling MyThingSayer.ThrowThing (and catching it)" << endl;
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MyThingSayer.ThrowThing();
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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// Test Static object throwing MyException shipped in the ELF and located in RAM.
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try
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{
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cout << "main: Calling MyThingSayer.ThrowMyThing (and catching it)" << endl;
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MyThingSayer.ThrowMyThing();
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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// Testing with a local object
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CThingSayer localMyThingSayer;
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cout << "main: Calling localMyThingSayer.Initialize" << endl;
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localMyThingSayer.Initialize("Repeat in heap.");
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cout << "main: Calling localMyThingSayer.SayThing" << endl;
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localMyThingSayer.SayThing();
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// Test local object throwing std::exception located in flash
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try
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{
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cout << "main: Calling localMyThingSayer.ThrowThing (and catching it)" << endl;
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localMyThingSayer.ThrowThing();
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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// Test local object throwing MyException shipped in the ELF and located in RAM.
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// Also testing the action record selection logic trying different sorting of the
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// catch clauses
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try
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{
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cout << "main: Calling localMyThingSayer.ThrowMyThing (and catching it)" << endl;
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localMyThingSayer.ThrowMyThing();
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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// AGAING: Test local object throwing MyException shipped in the ELF and located in RAM.
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// Also testing the action record selection logic trying different sorting of the
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// catch clauses
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try
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{
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cout << "main: Calling localMyThingSayer.ThrowMyThing (and catching it)" << endl;
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localMyThingSayer.ThrowMyThing("Custom Reason.");
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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// We are finished, return. We should see the message from the
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// destructor, CThingSayer::~CThingSayer(), AFTER we see the following
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// message. That is proof that the C++ static destructor logic
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// is working
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cout << "main: Returning" << endl;
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return 0;
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}
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/////////////////////////////////////////////////////////////////////////////
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// examples/elf/tests/helloxx/hello++5.c
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//
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// Copyright (C) 2015 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <gnutt@nuttx.org>
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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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|
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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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|
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|
|
// This is an excessively complex version of "Hello, World" design to
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|
|
|
// illustrate some basic properties of C++:
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|
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//
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|
|
|
|
// - Building a C++ program
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|
|
|
// - Streams / statically linked libstdc++
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|
|
|
// - Static constructor and destructors (in main program only)
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|
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|
// - Exception handling
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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 <cstdio>
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#include <iostream>
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#include <string>
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#ifndef NULL
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# define NULL ((void*)0L)
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// Private Classes
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/////////////////////////////////////////////////////////////////////////////
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using namespace std;
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// A hello world sayer class
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class CThingSayer
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{
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const char *szWhatToSay;
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public:
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CThingSayer(void);
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virtual ~CThingSayer(void);
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virtual void Initialize(const char *czSayThis);
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virtual void SayThing(void);
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virtual void ThrowThing(void);
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virtual void ThrowMyThing(const char *czSayThis);
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};
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class MyException: public std::exception
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{
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std::string reason;
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public:
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virtual ~MyException() throw();
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MyException();
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MyException(std::string r);
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virtual const char *what() const throw();
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};
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/////////////////////////////////////////////////////////////////////////////
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// Private Data
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/////////////////////////////////////////////////////////////////////////////
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// A static instance of the CThingSayer class. This instance MUST
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// be constructed by the system BEFORE the program is started at
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// main() and must be destructed by the system AFTER the main()
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// returns to the system
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static CThingSayer MyThingSayer;
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/////////////////////////////////////////////////////////////////////////////
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// MyException Method Implementations
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/////////////////////////////////////////////////////////////////////////////
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MyException::MyException(std::string r = NULL) : reason(r)
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{
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if( r.length() > 0 )
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{
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cout << "MyException(" << r << "): constructing with reason." << endl;
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}
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else
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{
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cout << "MyException(): constructing." << endl;
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}
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}
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MyException::~MyException() throw()
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{
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cout << "~MyException(): destructing." << endl;
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}
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const char *MyException::what() const throw()
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{
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return reason.c_str();
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}
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/////////////////////////////////////////////////////////////////////////////
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// CThingSayer Method Implementations
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/////////////////////////////////////////////////////////////////////////////
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// These are implementations of the methods of the CThingSayer class
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CThingSayer::CThingSayer(void)
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{
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cout << "CThingSayer::CThingSayer: I am!" << endl;
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szWhatToSay = (const char*)NULL;
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}
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CThingSayer::~CThingSayer(void)
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{
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cout << "CThingSayer::~CThingSayer: I cease to be" << endl;
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if (szWhatToSay)
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{
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cout << "CThingSayer::~CThingSayer: I will never say '"
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<< szWhatToSay << "' again" << endl;
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}
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szWhatToSay = (const char*)NULL;
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}
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void CThingSayer::Initialize(const char *czSayThis)
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{
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cout << "CThingSayer::Initialize: When told, I will say '"
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<< czSayThis << "'" << endl;
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szWhatToSay = czSayThis;
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}
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void CThingSayer::SayThing(void)
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{
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cout << "CThingSayer::SayThing: I am now saying '"
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<< szWhatToSay << "'" << endl;
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}
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void CThingSayer::ThrowThing(void)
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{
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cout << "CThingSayer::ThrowThing: I am now throwing an exception." << endl;
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throw exception();
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}
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void CThingSayer::ThrowMyThing(const char *czSayThis = NULL)
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{
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cout << "CThingSayer::ThrowMyThing: I am now throwing an MyException (with reason)." << endl;
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throw MyException( string(czSayThis) );
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}
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/////////////////////////////////////////////////////////////////////////////
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// Public Functions
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/////////////////////////////////////////////////////////////////////////////
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int main(int argc, char **argv)
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{
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// We should see the message from constructor, CThingSayer::CThingSayer(),
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// BEFORE we see the following messages. That is proof that the
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// C++ static initializer is working
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cout << "main: Started" << endl;
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// Tell MyThingSayer that "Hello, World!" is the string to be said
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cout << "main: Calling MyThingSayer.Initialize" << endl;
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MyThingSayer.Initialize("Hello, World!");
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// Tell MyThingSayer to say the thing we told it to say
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cout << "main: Calling MyThingSayer.SayThing" << endl;
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MyThingSayer.SayThing();
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// Test Static object throwing std::exception located in flash
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try
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{
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cout << "main: Calling MyThingSayer.ThrowThing (and catching it)" << endl;
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MyThingSayer.ThrowThing();
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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// Test Static object throwing MyException shipped in the ELF and located in RAM.
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try
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{
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cout << "main: Calling MyThingSayer.ThrowMyThing (and catching it)" << endl;
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MyThingSayer.ThrowMyThing();
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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// Testing with a local object
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CThingSayer localMyThingSayer;
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cout << "main: Calling localMyThingSayer.Initialize" << endl;
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localMyThingSayer.Initialize("Repeat in heap.");
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cout << "main: Calling localMyThingSayer.SayThing" << endl;
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localMyThingSayer.SayThing();
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// Test local object throwing std::exception located in flash
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try
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{
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cout << "main: Calling localMyThingSayer.ThrowThing (and catching it)" << endl;
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localMyThingSayer.ThrowThing();
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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// Test local object throwing MyException shipped in the ELF and located in RAM.
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// Also testing the action record selection logic trying different sorting of the
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// catch clauses
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try
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{
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cout << "main: Calling localMyThingSayer.ThrowMyThing (and catching it)" << endl;
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localMyThingSayer.ThrowMyThing();
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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// AGAING: Test local object throwing MyException shipped in the ELF and located in RAM.
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// Also testing the action record selection logic trying different sorting of the
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// catch clauses
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try
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{
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cout << "main: Calling localMyThingSayer.ThrowMyThing (and catching it)" << endl;
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localMyThingSayer.ThrowMyThing("Custom Reason.");
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}
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catch (const MyException& e)
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{
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cout << "main: Caught MyException: " << e.what() << endl;
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}
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catch (const exception& e)
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{
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cout << "main: Caught exception: " << e.what() << endl;
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}
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// We are finished, return. We should see the message from the
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// destructor, CThingSayer::~CThingSayer(), AFTER we see the following
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// message. That is proof that the C++ static destructor logic
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// is working
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cout << "main: Returning" << endl;
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return 0;
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}
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chao.an
Abdelatif Guettouche