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Widgets     Book   File Utilities Various file-related classes and functions. More... Compounds class   Dir   Utility class representing an open directory. More... class   DirIterator   The iterator type of Glib::Dir. More... class   FileError   Exception class for file-related errors. More... Functions bool  file_test (const std::string& filename, FileTest test)   Returns true if any of the tests in the bitfield test are true. int  mkstemp (std::string& filename_template)   Opens a temporary file. int  file_open_tmp (std::string& name_used, const std::string& prefix)   Opens a file for writing in the preferred directory for temporary files (as returned by Glib::get_tmp_dir()). int  file_open_tmp (std::string& name_used)   Opens a file for writing in the preferred directory for temporary files (as returned by Glib::get_tmp_dir()). std::string  file_get_contents (const std::string& filename)   Reads an entire file into a string, with good error checking. Detailed Description Various file-related classes and functions. Function Documentation std::string file_get_contents ( const std::string&    filename )    Reads an entire file into a string, with good error checking. Parameters: filename  A file to read contents from. Returns: The file contents. Exceptions: Glib::FileError  int file_open_tmp ( std::string&    name_used )    Opens a file for writing in the preferred directory for temporary files (as returned by Glib::get_tmp_dir()). This function works like file_open_tmp(std::string&, const std::string&) but uses a default basename prefix. Return values: name_used  The actual name used. Returns: A file handle (as from open()) to the file opened for reading and writing. The file is opened in binary mode on platforms where there is a difference. The file handle should be closed with close(). Exceptions: Glib::FileError  int file_open_tmp ( std::string&    name_used, const std::string&    prefix )    Opens a file for writing in the preferred directory for temporary files (as returned by Glib::get_tmp_dir()). prefix should a basename template; it'll be suffixed by 6 characters in order to form a unique filename. No directory components are allowed. The actual name used is returned in name_used. Parameters: prefix  Template for file name, basename only. Return values: name_used  The actual name used. Returns: A file handle (as from open()) to the file opened for reading and writing. The file is opened in binary mode on platforms where there is a difference. The file handle should be closed with close(). Exceptions: Glib::FileError  bool file_test ( const std::string&    filename, FileTest    test )    Returns true if any of the tests in the bitfield test are true. For example, (Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_DIR) will return true if the file exists; the check whether it's a directory doesn't matter since the existence test is true. With the current set of available tests, there's no point passing in more than one test at a time. Apart from Glib::FILE_TEST_IS_SYMLINK all tests follow symbolic links, so for a symbolic link to a regular file file_test() will return true for both Glib::FILE_TEST_IS_SYMLINK and Glib::FILE_TEST_IS_REGULAR. Note: For a dangling symbolic link file_test() will return true for Glib::FILE_TEST_IS_SYMLINK and false for all other flags. Parameters: filename  A filename to test. test  Bitfield of Glib::FileTest flags. Returns: Whether a test was true. int mkstemp ( std::string&    filename_template )    Opens a temporary file. See the mkstemp() documentation on most UNIX-like systems. This is a portability wrapper, which simply calls mkstemp() on systems that have it, and implements it in GLib otherwise. Parameters: filename_template  A string that should match the rules for mkstemp(), i.e. end in "XXXXXX". The X string will be modified to form the name of a file that didn't exist. Returns: A file handle (as from open()) to the file opened for reading and writing. The file is opened in binary mode on platforms where there is a difference. The file handle should be closed with close(). In case of errors, -1 is returned.