test

Oracle Solaris Studio 12.2：C++ 用户指南

10.4.2.2 新增类的分层结构

下表列出了已增加到 iostream 接口的新类的分层结构。

示例 10–8 新增类的分层结构


class streambuf: public stream_MT {...};
class unsafe_ios {...};
class ios: virtual public unsafe_ios, public stream_MT {...};
class unsafe_fstreambase: virtual public unsafe_ios {...};
class fstreambase: virtual public ios, public unsafe_fstreambase
  {...};
class unsafe_strstreambase: virtual public unsafe_ios {...};
class strstreambase: virtual public ios, public unsafe_strstreambase {...};
class unsafe_istream: virtual public unsafe_ios {...};
class unsafe_ostream: virtual public unsafe_ios {...};
class istream: virtual public ios, public unsafe_istream {...};
class ostream: virtual public ios, public unsafe_ostream {...};
class unsafe_iostream: public unsafe_istream, public unsafe_ostream {...};