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exceptn.cpp
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C/C++ Source or Header
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1998-02-09
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4KB
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108 lines
#include "stlexam.h"
#pragma hdrstop
/**************************************************************************
*
* exceptn.cpp - Illustrate the use of Standard exceptions.
* Section 13
*
* $Id: exceptn.cpp,v 1.8 1996/08/28 01:19:03 smithey Exp $
*
***************************************************************************
*
* (c) Copyright 1994, 1995 Rogue Wave Software, Inc.
* ALL RIGHTS RESERVED *
* The software and information contained herein are proprietary to, and
* comprise valuable trade secrets of, Rogue Wave Software, Inc., which
* intends to preserve as trade secrets such software and information.
* This software is furnished pursuant to a written license agreement and
* may be used, copied, transmitted, and stored only in accordance with
* the terms of such license and with the inclusion of the above copyright
* notice. This software and information or any other copies thereof may
* not be provided or otherwise made available to any other person.
*
* Notwithstanding any other lease or license that may pertain to, or
* accompany the delivery of, this computer software and information, the
* rights of the Government regarding its use, reproduction and disclosure
* are as set forth in Section 52.227-19 of the FARS Computer
* Software-Restricted Rights clause.
*
* Use, duplication, or disclosure by the Government is subject to
* restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
* Technical Data and Computer Software clause at DFARS 252.227-7013.
* Contractor/Manufacturer is Rogue Wave Software, Inc.,
* P.O. Box 2328, Corvallis, Oregon 97339.
*
* This computer software and information is distributed with "restricted
* rights." Use, duplication or disclosure is subject to restrictions as
* set forth in NASA FAR SUP 18-52.227-79 (April 1985) "Commercial
* Computer Software-Restricted Rights (April 1985)." If the Clause at
* 18-52.227-74 "Rights in Data General" is specified in the contract,
* then the "Alternate III" clause applies.
*
**************************************************************************/
#ifndef _RWSTD_HEADER_REQUIRES_HPP
#include <string>
#include <stdexcept>
#else
#include <string.hpp>
#include <stdexcept.hpp>
#endif
#ifdef _RW_STD_IOSTREAM
#include <iostream>
#else
#include <iostream.h>
#endif
#ifndef _RWSTD_NO_NAMESPACE
using namespace std;
#endif
#ifdef _RWSTD_NO_EXCEPTIONS
int main ()
{
cout << "Your compiler doesn't support exceptions!" << endl;
return 0;
}
#else
// A simple class to demonstrate throwing an exception
static void f() { throw runtime_error("a runtime error"); }
int main ()
{
string s;
// First we'll try to incite and catch an exception from
// the standard library string class.
// We'll try to replace at a position that is non-existant.
//
// By wrapping the body of main in a try-catch block we can be
// assured that we'll catch all exceptions in the exception hierarchy.
// You can simply catch exception as is done below, or you can catch
// each of the exceptions in which you have an interest.
try
{
s.replace(100,1,1,'c');
}
catch (const exception& e)
{
cout << "Got an exception: " << e.what() << endl;
}
// Now we'll throw our own exception using the function
// defined above.
try
{
f();
}
catch (const exception& e)
{
cout << "Got an exception: " << e.what() << endl;
}
return 0;
}
#endif /*_RWSTD_NO_EXCEPTIONS*/