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C++ , Ostream derived

 
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hitech_guy
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PostPosted: Sat Apr 23, 2005 2:25 am    Post subject: C++ , Ostream derived Reply with quote


Hi,

I am creating my own class derving from ostream. I am facing problem in
compiling with GNU G++ compiler under linux
class IWCoreEXPORT IWAFTraceLine : public ostream
{
public:
IWAFTraceLine( const char* pszFileName = 0,int
nLine = 0, const char* pszLayer = 0,int nError = -1 );
~IWAFTraceLine( );

IWAFTraceLine( const IWAFTraceLine& that );
IWAFTraceLine& operator = ( const IWAFTraceLine& that );
ostream buffer;

//!!! These numbers can't be negative, so why not uint or size_t?
int getErrorNumber( ) const;
void setErrorNumber( int nError );

int getLineNumber( ) const;
void setLineNumber( int nLine );

const String& getFileName( ) const;
void setFileName( const String& strFileName );

const String& getLayer( ) const;
void setLayer( const String& strLayer );

String getMessage( ) const;

Boolean existsSubstInfo( const String& key ) const;
const String& findSubstInfo( const String& key ) const;
void insertSubstInfo( const String& key,
const String& value );
private:
typedef map< String, String, less < String > ,allocator<String>
Quote:
SubstInfoMap ;

private:
String m_strFileName;
int m_nLine;
int m_nError;
String m_strLayer;
SubstInfoMap m_substInfo;
strstreambuf m_msg;
};
//!!! Should this be nested within IWAFException??
typedef vector< IWAFTraceLine ,allocator
IWAFTraceLines;

/********************************************************/
IWAFTraceLine::IWAFTraceLine( const char* pszFileName, int nLine,
const char* pszLayer,int nError) : m_strFileName.c_str(),
m_nLine,m_strLayer.c_str(),m_nError

{
if(pszFileName)
m_strFileName = pszFileName;

if(pszLayer)
m_strLayer = pszLayer;

init(&m_msg);
}

Can you please tell me that why the code is not been compiled in the
Linux with GNU G++ compiler.

mail me at [email]dinesh_tripathi (AT) hitechclub (DOT) com[/email]

regards
dinesh


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Ron Natalie
Guest
PostPosted: Sun Apr 24, 2005 9:22 am    Post subject: Re: C++ , Ostream derived Reply with quote


hitech_guy wrote:
Quote:
Hi,

I am creating my own class derving from ostream. I am facing problem in
compiling with GNU G++ compiler under linux
As I pointed out the last time you posted this, your code seems to

assume that you can copy and assign ostreams, which you can't.

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