What are the principles guiding your exception handling policy? [closed]

Answer 1

As a C++ developer, my own policy is not to throw exceptions from what I consider to be public apis to my classes/modules (in fact, a requirement with COM). However, I use exceptions extensively in private class implementation. For example, working with ATL:

HRESULT Foo()
{
    HRESULT hr = S_OK;
    try {
        // Avoid a whole lot of nested ifs and return code
        // checking - internal stuff just throws.
        DoStuff();
        DoMoreStuff(); // etc.
    } catch ( CAtlException& e ) {
        hr = e;
    }
    return hr;
}

void DoSomething()
{
    // If something goes wrong, AtlThrow( E_FAILED or E_WHATEVER ); 
}