摘要：
转自：http://www.cnblogs.com/propheteia/archive/2012/07/24/2607091.html/** * @brief The quick-and-easy status check. * * This allows you to write constructs such as * "if (!a_stream) ..." and "while (a_stream) ..."
*/
operator void*() const
{ return this->fail() ? 0 : const_cast& 阅读全文
