RWDataFromByteInputStreamImp

Module:  Advanced Tools   Package:  Streams

RWDataFromByteInputStreamImp  RWDataInputStreamImp  
    RWInputStreamImp  RWStreamImp  RWBodyBase

• Local Index
• Header File
• Description
• Protected Constructor
• Public Destructor
• Public Member Functions
• Protected Member Functions

Members

available() clearFail() close()

getSourceStream() isBad() isEof()

isFail() isGood() RWDataFromByteInputStreamImp()

setFail() skip() ~RWDataFromByteInputStreamImp()

#include <rw/stream/RWDataFromByteInputStreamImp.h>

Abstract base class for all the data from the binary conversion input stream implementation classes. A conversion input stream is a stream that uses an attached input stream of a different format as the source of elements to its own functions. Implements the body idiom from the handle-body pattern.

RWDataFromByteInputStreamImp(RWByteInputStream& sourceStream);

Used by the derived classes to initialize the attached source stream.

Parameter List

sourceStream

A handle to the attached source stream.

virtual 
~RWDataFromByteInputStreamImp();

Destructor.

virtual RWSize 
available() const;

Returns the number of bytes that can be read from the attached source stream without blocking. Throws no exceptions.

virtual void 
close();

Forwards the close() request to the attached source stream.

virtual bool 
isBad() const;

Forwards the isBad() request to the attached source stream. Throws no exceptions.

virtual bool 
isEof() const;

Forwards the isEof() request to the attached source stream. Throws no exceptions.

virtual bool 
isFail() const;

Forwards the isFail() request to the attached source stream. Throws no exceptions.

virtual bool 
isGood() const;

Forwards the isGood() request to the attached source stream. Throws no exceptions.

virtual RWSize 
skip(RWSize numUnits);

Skips numUnits bytes from the input sequence of the attached source stream, if possible. The function returns the actual number of bytes skipped, which can be any value between 0 and numUnits.

Parameter List

numUnits

The number of bytes to be skipped.

void 
clearFail();

Clears the data stream fail bit. Throws no exceptions.

RWByteInputStream& 
getSourceStream();

const RWByteInputStream& 
getSourceStream() const;

These functions return a handle to the attached source stream. They throw no exceptions.

void 
setFail();

Sets the data stream fail bit. Throws no exceptions.

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