pr25001.cpp

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////////////////////////////////////////
// File Name: pr25001.cpp
////////////////////////////////////////
#include <iostream>

// Function prototypes.
void foo();

// Exception class declaration.
class Bummer{};

////////////////////////////////////////
// The main() function.
////////////////////////////////////////
int main()
{
    // The try block.
    try
    {
        std::cout << "calling foo" << std::endl;
        foo();
        std::cout << "return from foo << std::endl";
    }

    // Catch exception handler.
    catch(Bummer)
    {
        // Error-handling code.
        std::cout << "catching Bummer" << std::endl;
    }
    std::cout << "done" << std::endl;

    return 0;
}

////////////////////////////////////////
// Program function.
////////////////////////////////////////
void foo()
{
    int error = 1;

    // C++ statements to do stuff.
    if (error)
    {
        std::cout << "throwing Bummer" << std::endl;
        throw Bummer();
    }
}