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  2. Technische Fakultät
  3. Department Informatik
Friedrich-Alexander-Universität Lehrstuhl für Informatik 4 (Systemsoftware)
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      • Aufgabe 0: C++ Streams
        • Aufgabe 1: Ein-/Ausgabe
          • Assembler Crashkurs
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                Aufgabe 0: C++ Streams

                Public Member Functions | Static Public Member Functions | List of all members
                FileOut Class Reference

                Write text into file. More...

                #include <test-stream/file_out.h>

                + Inheritance diagram for FileOut:
                [legend]
                + Collaboration diagram for FileOut:
                [legend]

                Public Member Functions

                 FileOut (const char *path)
                 Constructor. More...
                 
                virtual ~FileOut ()
                 Destructor. More...
                 
                const char * getPath ()
                 Get path of the output file. More...
                 
                virtual void flush () override
                 Write the string to the open file. More...
                 
                - Public Member Functions inherited from OutputStream
                 OutputStream ()
                 Default constructor. Initial number system is decimal. More...
                 
                virtual ~OutputStream ()
                 Destructor.
                 
                virtual void flush ()=0
                 Clears the buffer. More...
                 
                OutputStream & operator<< (char c)
                 Print a single character. More...
                 
                OutputStream & operator<< (unsigned char c)
                 Print a single character. More...
                 
                OutputStream & operator<< (const char *string)
                 Printing a null-terminated string. More...
                 
                OutputStream & operator<< (bool b)
                 Print a boolean value. More...
                 
                OutputStream & operator<< (short ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (unsigned short ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (int ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (unsigned int ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (long ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (unsigned long ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (long long ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (unsigned long long ival)
                 Print an integral number in radix base More...
                 
                OutputStream & operator<< (const void *ptr)
                 Print a pointer as hexadecimal number. More...
                 
                OutputStream & operator<< (OutputStream &(*f)(OutputStream &))
                 Calls one of the manipulator functions. More...
                 
                - Public Member Functions inherited from Stringbuffer
                virtual ~Stringbuffer ()
                 Destructor (nothing to do here)
                 

                Static Public Member Functions

                static int count ()
                 Number of output files which are currently opened (with this class) More...
                 

                Additional Inherited Members

                - Public Attributes inherited from OutputStream
                int base
                 Number system used for printing integral numbers (one of 2, 8, 10, or 16)
                 
                - Protected Member Functions inherited from Stringbuffer
                 Stringbuffer ()
                 Constructor; Marks the buffer as empty. More...
                 
                void put (char c)
                 Inserts a character into the buffer. More...
                 
                virtual void flush ()=0
                 Flush the buffer contents. More...
                 
                - Protected Attributes inherited from Stringbuffer
                char buffer [80]
                 buffer containing characters that will be printed upon flush()
                 
                long unsigned pos
                 current position in the buffer
                 

                Detailed Description

                Write text into file.

                This class allows a comfortable output to a file only by using the elementary system calls open() / write() / close() and (optional) fsync(). The class is derived from OutputStream.

                Constructor & Destructor Documentation

                FileOut::FileOut ( const char *  path)
                explicit

                Constructor.

                Opens the file for writing using the system call open().

                Parameters
                pathPath to the output file
                Todo:
                Implement constructor
                FileOut::~FileOut ( )
                virtual

                Destructor.

                Close the output file (using the system call close())

                Todo:
                Implement destructor

                Member Function Documentation

                const char * FileOut::getPath ( )

                Get path of the output file.

                Returns
                Path to output file (as defined in constructor)
                Todo:
                Implement Method
                int FileOut::count ( )
                static

                Number of output files which are currently opened (with this class)

                Returns
                Number of active files
                Todo:
                Implement Method
                void FileOut::flush ( )
                overridevirtual

                Write the string to the open file.

                The implementation should only use the system calls write() and fsync().

                Todo:
                Implement virtual Method

                Implements OutputStream.


                The documentation for this class was generated from the following files:
                • test-stream/file_out.h
                • test-stream/file_out.cc
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