Bond 0.9
C++ Bond Runtime Library API Documentation
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Bond::StdioOutputStream Class Reference

A concrete implementation of OutputStream that performs output operations to a stdio FILE*. More...

#include <bond/io/stdiooutputstream.h>

Inheritance diagram for Bond::StdioOutputStream:
Bond::OutputStream Bond::Stream Bond::StdErrOutputStream Bond::StdOutOutputStream

Public Member Functions

 StdioOutputStream (FILE *file)
 Constructs a StdioOutputStream object.
 StdioOutputStream (const char *fileName)
 Constructs a StdioOutputStream object that opens and owns the given file.
 StdioOutputStream (StdioFileHandle &&handle)
 Constructs a StdioOutputStream object.
 StdioOutputStream (StdioOutputStream &&other)
 Move-constructs a StdioOutputStream object.
virtual ~StdioOutputStream ()
 Destroys a StdioOutputStream object, closing the file if it is owned.
 StdioOutputStream (const StdioOutputStream &other)=delete
StdioOutputStream & operator= (const StdioOutputStream &other)=delete
StdioOutputStream & operator= (StdioOutputStream &&other)
 Closes the file if it is owned and takes over the file of another StdioOutputStream.
bool IsBound () const
 Tests whether this stream is currently bound to a FILE object.
virtual void Close () override
 Closes the FILE object, whether or not it is owned, and unbinds the stream.
virtual void Flush () override
 Flushes any buffered output.
virtual void VPrint (const char *format, va_list argList) override
 Writes formatted output to the stream using a variable argument list.
virtual void Write (uint8_t c) override
 Writes a single byte to the stream.
virtual void Write (const uint8_t *bytes, size_t numBytes) override
 Writes a sequence of bytes to the stream.
virtual pos_t GetPosition () const override
 Returns the current position within the stream.
virtual pos_t GetEndPosition () const override
 Returns the end position of the stream.
virtual void SetPosition (off_t offset) override
 Sets the current position within the stream.
virtual void SetPositionFromEnd (off_t offset) override
 Sets the current position relative to the end of the stream.
virtual void AddOffset (off_t offset) override
 Advances the current position by the given offset.
virtual bool IsEof () const override
 Tests whether the current position is at or beyond the end of the stream.
virtual bool HasError () const override
 Tests whether the stream is currently in an error state.
virtual void ClearError () override
 Clears the current error state of the stream.
Public Member Functions inherited from Bond::OutputStream
virtual ~OutputStream ()
 Destroys an OutputStream object.
virtual void Print (const char *format,...)
 Writes formatted output to the stream.
Public Member Functions inherited from Bond::Stream
virtual ~Stream ()
 Destroys a Stream object.

Additional Inherited Members

Public Types inherited from Bond::Stream
typedef long pos_t
 A type used to represent absolute positions within a stream.
typedef long off_t
 A type used to represent relative offsets within a stream.
Static Public Attributes inherited from Bond::Stream
static const int Eof = -1
 A special value returned by single-byte input functions to indicate end of stream.

Detailed Description

A concrete implementation of OutputStream that performs output operations to a stdio FILE*.

StdioOutputStream adapts a C stdio FILE object to the OutputStream interface. The stream may be bound either to an existing FILE pointer or to a file opened and owned through a StdioFileHandle.

See also
OutputStream, StdioInputStream

Constructor & Destructor Documentation

◆ StdioOutputStream() [1/5]

Bond::StdioOutputStream::StdioOutputStream ( FILE * file)
inlineexplicit

Constructs a StdioOutputStream object.

Parameters
fileThe stdio FILE object to which output will be written. The file is not owned by the StdioOutputStream, so it is not closed when the StdioOutputStream is destroyed, but it is closed by Close().

◆ StdioOutputStream() [2/5]

Bond::StdioOutputStream::StdioOutputStream ( const char * fileName)
explicit

Constructs a StdioOutputStream object that opens and owns the given file.

An existing file is truncated. Throws a Bond::Exception if the file fails to open.

Parameters
fileNameThe name of the file to open for writing in binary mode, encoded in UTF-8.

◆ StdioOutputStream() [3/5]

Bond::StdioOutputStream::StdioOutputStream ( StdioFileHandle && handle)
inlineexplicit

Constructs a StdioOutputStream object.

Parameters
handleAn owning file handle whose FILE object will be used for output operations.

◆ StdioOutputStream() [4/5]

Bond::StdioOutputStream::StdioOutputStream ( StdioOutputStream && other)
inline

Move-constructs a StdioOutputStream object.

Parameters
otherThe StdioOutputStream object from which resources will be moved.

◆ ~StdioOutputStream()

virtual Bond::StdioOutputStream::~StdioOutputStream ( )
inlinevirtual

Destroys a StdioOutputStream object, closing the file if it is owned.

◆ StdioOutputStream() [5/5]

Bond::StdioOutputStream::StdioOutputStream ( const StdioOutputStream & other)
delete

Member Function Documentation

◆ AddOffset()

virtual void Bond::StdioOutputStream::AddOffset ( off_t offset)
inlineoverridevirtual

Advances the current position by the given offset.

Parameters
offsetThe signed amount by which the current position should be adjusted.

Implements Bond::Stream.

◆ ClearError()

virtual void Bond::StdioOutputStream::ClearError ( )
inlineoverridevirtual

Clears the current error state of the stream.

Implements Bond::Stream.

◆ Close()

virtual void Bond::StdioOutputStream::Close ( )
overridevirtual

Closes the FILE object, whether or not it is owned, and unbinds the stream.

Reimplemented from Bond::Stream.

◆ Flush()

virtual void Bond::StdioOutputStream::Flush ( )
inlineoverridevirtual

Flushes any buffered output.

The default implementation does nothing. Concrete stream implementations may override this function when they buffer output internally or depend on an underlying buffered API.

Reimplemented from Bond::OutputStream.

◆ GetEndPosition()

virtual pos_t Bond::StdioOutputStream::GetEndPosition ( ) const
overridevirtual

Returns the end position of the stream.

Returns
The absolute position one past the last byte in the stream.

Implements Bond::Stream.

◆ GetPosition()

virtual pos_t Bond::StdioOutputStream::GetPosition ( ) const
inlineoverridevirtual

Returns the current position within the stream.

Returns
The current absolute stream position.

Implements Bond::Stream.

◆ HasError()

virtual bool Bond::StdioOutputStream::HasError ( ) const
inlineoverridevirtual

Tests whether the stream is currently in an error state.

Returns
True if an error has occurred on the underlying stream.

Implements Bond::Stream.

◆ IsBound()

bool Bond::StdioOutputStream::IsBound ( ) const
inline

Tests whether this stream is currently bound to a FILE object.

Returns
True if this stream is bound to a FILE object.

◆ IsEof()

virtual bool Bond::StdioOutputStream::IsEof ( ) const
inlineoverridevirtual

Tests whether the current position is at or beyond the end of the stream.

Returns
True if no more data can be read or written at the current position.

Implements Bond::Stream.

◆ operator=() [1/2]

StdioOutputStream & Bond::StdioOutputStream::operator= ( const StdioOutputStream & other)
delete

◆ operator=() [2/2]

StdioOutputStream & Bond::StdioOutputStream::operator= ( StdioOutputStream && other)

Closes the file if it is owned and takes over the file of another StdioOutputStream.

Parameters
otherThe StdioOutputStream object from which resources will be moved.
Returns
A reference to this StdioOutputStream.

◆ SetPosition()

virtual void Bond::StdioOutputStream::SetPosition ( off_t offset)
inlineoverridevirtual

Sets the current position within the stream.

Parameters
offsetThe absolute position to which the stream should be moved.

Implements Bond::Stream.

◆ SetPositionFromEnd()

virtual void Bond::StdioOutputStream::SetPositionFromEnd ( off_t offset)
inlineoverridevirtual

Sets the current position relative to the end of the stream.

Parameters
offsetThe offset from the end position to which the stream should be moved, i.e. the new position is GetEndPosition() + offset, so offset is normally zero or negative.

Implements Bond::Stream.

◆ VPrint()

virtual void Bond::StdioOutputStream::VPrint ( const char * format,
va_list argList )
inlineoverridevirtual

Writes formatted output to the stream using a variable argument list.

Parameters
formatA printf-style format string describing the text to be written.
argListA variable argument list containing the values to be formatted.

Implements Bond::OutputStream.

◆ Write() [1/2]

virtual void Bond::StdioOutputStream::Write ( const uint8_t * bytes,
size_t numBytes )
inlineoverridevirtual

Writes a sequence of bytes to the stream.

Parameters
bytesThe buffer containing the bytes to be written.
numBytesThe number of bytes to write.

Reimplemented from Bond::OutputStream.

◆ Write() [2/2]

virtual void Bond::StdioOutputStream::Write ( uint8_t byte)
inlineoverridevirtual

Writes a single byte to the stream.

Parameters
byteThe byte to write.

Implements Bond::OutputStream.


The documentation for this class was generated from the following file:
  • include/bond/io/stdiooutputstream.h