<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Class Poco::FileIOS</title> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="language" content="en"/> <meta name="date" content="2009-11-24"/> <meta name="generator" content="PocoDoc"/> <link rel="stylesheet" href="css/styles.css" type="text/css"/> </head> <body bgcolor="#ffffff" leftmargin="0" topmargin="0"> <div class="header"> <h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1> <h1 class="symbol">class FileIOS</h1> </div> <div class="body"> <p> <b>Library:</b> Foundation<br /> <b>Package:</b> Streams<br /> <b>Header:</b> Poco/FileStream.h</p> <h2>Description</h2> <div class="description"> <p>The base class for <a href="Poco.FileInputStream.html" title="class Poco::FileInputStream">FileInputStream</a> and <a href="Poco.FileOutputStream.html" title="class Poco::FileOutputStream">FileOutputStream</a>. </p> <p>This class is needed to ensure the correct initialization order of the stream buffer and base classes. </p> <p>Files are always opened in binary mode, a text mode with CR-LF translation is not supported. Thus, the file is always opened as if the std::ios::binary flag was specified. Use an <a href="Poco.InputLineEndingConverter.html" title="class Poco::InputLineEndingConverter">InputLineEndingConverter</a> or <a href="Poco.OutputLineEndingConverter.html" title="class Poco::OutputLineEndingConverter">OutputLineEndingConverter</a> if you require CR-LF translation. </p> <p>On Windows platforms, if POCO_WIN32_UTF8 is #define'd, UTF-8 encoded <a href="Poco.Unicode.html" title="class Poco::Unicode">Unicode</a> paths are correctly handled. </p> </div> <h2>Inheritance</h2> <p><b>Direct Base Classes: </b>std::ios</p> <p><b>All Base Classes: </b>std::ios</p> <p><b>Known Derived Classes: </b><a href="Poco.FileInputStream.html" title="class Poco::FileInputStream">FileInputStream</a>, <a href="Poco.FileOutputStream.html" title="class Poco::FileOutputStream">FileOutputStream</a>, <a href="Poco.FileStream.html" title="class Poco::FileStream">FileStream</a></p> <h2>Member Summary</h2> <p><b>Member Functions: </b><a href="Poco.FileIOS.html#7037" title="Poco::FileIOS::close()">close</a>, <a href="Poco.FileIOS.html#7034" title="Poco::FileIOS::open()">open</a>, <a href="Poco.FileIOS.html#7038" title="Poco::FileIOS::rdbuf()">rdbuf</a></p> <h2>Constructors</h2> <h3><a name="7031">FileIOS</a></h3> <p class="decl"><a href="Poco.FileIOS.html" title="class Poco::FileIOS">FileIOS</a>(<br /> std::ios::openmode defaultMode<br />);</p> <div class="description"> <p>Creates the basic stream. </p> </div> <h2>Destructor</h2> <h3><a name="7033">~FileIOS</a></h3> <p class="decl">~<a href="Poco.FileIOS.html" title="class Poco::FileIOS">FileIOS</a>();</p> <div class="description"> <p>Destroys the stream. </p> </div> <h2>Member Functions</h2> <h3><a name="7037">close</a></h3> <p class="decl">void close();</p> <div class="description"> <p>Closes the file stream. </p> <p>If, for an output stream, the close operation fails (because the contents of the stream buffer cannot synced back to the filesystem), the bad bit is set in the stream state. </p> </div> <h3><a name="7034">open</a></h3> <p class="decl">void open(<br /> const std::string & path,<br /> std::ios::openmode mode<br />);</p> <div class="description"> <p>Opens the file specified by path, using the given mode. </p> <p>Throws a <a href="Poco.FileException.html" title="class Poco::FileException">FileException</a> (or a similar exception) if the file does not exist or is not accessible for other reasons and a new file cannot be created. </p> </div> <h3><a name="7038">rdbuf</a></h3> <p class="decl">FileStreamBuf * rdbuf();</p> <div class="description"> <p>Returns a pointer to the underlying streambuf. </p> </div> <h2>Variables</h2> <h3><a name="7039">_buf</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">FileStreamBuf _buf;</p> <div class="description"> <p></p> </div> <h3><a name="7040">_defaultMode</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">std::ios::openmode _defaultMode;</p> <div class="description"> <p></p> </div> <p class="footer">POCO C++ Libraries 1.3.6-all<br /> Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p> </div> </body> </html>
