RWDataFromCharInputStreamImp

Module:  Advanced Tools   Package:  Streams

RWDataFromCharInputStreamImp  RWDataInputStreamImp  
    RWInputStreamImp  RWStreamImp  RWBodyBase

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

Members

available() close() getSourceStream()

isBad() isEof() isFail()

isGood() RWDataFromCharInputStreamImp() skip()

~RWDataFromCharInputStreamImp()

#include <rw/stream/RWDataFromCharInputStreamImp.h>

Abstract base class for all the data from narrow character 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.

RWDataFromCharInputStreamImp(RWCharInputStream& sourceStream);

Used by derived classes to initialize the attached source stream.

Parameter List

sourceStream

A handle to the attached source stream.

virtual 
~RWDataFromCharInputStreamImp();

Destructor. Throws no exceptions.

virtual RWSize 
available() const;

Returns the number of narrow characters 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 narrow characters(s) from the input sequence of the attached source stream if possible. The function returns the actual number of narrow characters skipped, which can be any value between 0 and numUnits.

Parameter List

numUnits

The number of narrow characters to be skipped.

RWCharInputStream& 
getSourceStream();

const RWCharInputStream& 
getSourceStream() const;

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

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