BillyONeal

Here's another extremely common do-while example -- interfacing with most many C APIs. For instance:

std::vector<unsigned char> buffer;
unsigned int bufferLen = 0;
unsigned int error = 0;
do
{
    buffer.resize(bufferLen);
    error = ::SomeCApi(buffer.data(), &bufferLen);
} while (error == ERROR_MORE_DATA);

I would love to be able to build for Windows XP RTM, and Windows XP SP1, while not giving up the newer C++ features. That's not really language specific, I guess.