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:
+ Collaboration diagram for FileOut:

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: