Wrapper for several output streams. A verbosity level is used to decide which stream to use and whether to really print a given message. Regardless of whether the verbosity level is set via a manipulator or via the member function, it is persistent until a new value is set. More...

#include <spxout.h>

Classes
struct	struct_Verbosity
	helper struct for the output operator More...

Public Types
Output control types
enum	Verbosity { ERROR = 0, WARNING = 1, DEBUG = 2, INFO1 = 3, INFO2 = 4, INFO3 = 5 }
	Verbosity level. More...

Public Member Functions
Construction / destruction
	SPxOut ()
	constructor

virtual	~SPxOut ()
	destructor

Verbosity
virtual void	setVerbosity (const Verbosity &v)

Verbosity	getVerbosity () const

Wrappers for the current stream
bool	good () const

bool	operator! () const

std::streamsize	precision () const

Getting / setting streams
virtual void	setStream (const Verbosity &verbosity, std::ostream &stream)
	Sets the stream for the specified verbosity level.

std::ostream &	getStream (const Verbosity &verbosity) const
	Returns the stream for the specified verbosity level.

std::ostream &	getCurrentStream () const
	Returns the stream for the current verbosity.

Private Member Functions
Blocked
	SPxOut (const SPxOut &)
	copy constructor

SPxOut &	operator= (const SPxOut &)
	assignment operator

Private Attributes
Private data
Verbosity	m_verbosity
	verbosity level

std::ostream **	m_streams
	array of pointers to internal streams, indexed by verbosity level

Detailed Description

Wrapper for several output streams. A verbosity level is used to decide which stream to use and whether to really print a given message. Regardless of whether the verbosity level is set via a manipulator or via the member function, it is persistent until a new value is set.

Most ostream member functions are not provided here; use the corresponding stream manipulators (e.g., setprecision()) instead. These are passed on to the current ostream, which is chosen according to the verbosity level. In particular, this means that the first element in an output stream should always be the verbosity. For instance, use

spxout << verb( SPxOut::WARNING ) << std::setw( 15 ) << 42 << std::endl;

or

spxout.setVerbosity( SPxOut::WARNING );

spxout << std::setw( 15 ) << 42 << std::endl;

instead of

spxout << std::setw( 15 ) << verb( SPxOut::WARNING ) << 42 << std::endl;

in order to make sure that std::setw( 15 ) is applied to the warning stream.

Definition at line 61 of file spxout.h.