Dune::DebugStream< thislevel, dlevel, alevel, activator > Class Template Reference

Generic class to implement debug output streams. More...

#include <dune/common/debugstream.hh>

Public Member Functions
	DebugStream (std::ostream &out=std::cerr)
	Create a DebugStream and set initial output stream. More...
	DebugStream (DebugStreamState &master, std::ostream &fallback=std::cerr)
	Create a DebugStream and directly tie to another DebugStream. More...
	~DebugStream () noexcept(false)
	Destroy stream. More...
template<class T >
DebugStream &	operator<< (const T data)
	Generic types are passed on to current output stream.
DebugStream &	operator<< (const int data)
	explicit specialization so that enums can be printed More...
DebugStream &	operator<< (std::ostream &(*f)(std::ostream &))
	pass on manipulators to underlying output stream
DebugStream &	flush ()
	pass on flush to underlying output stream
void	push (bool b)
	set activation flag and store old value
void	pop () throw (DebugStreamError)
	restore previously set activation flag
bool	active () const
	reports if this stream will produce output More...
void	attach (std::ostream &stream)
	set output to a different stream. More...
void	detach () throw (DebugStreamError)
	detach current output stream and restore to previous stream
void	untie () throw (DebugStreamError)
	Untie stream.

Public Attributes
StreamWrap *	current
	current output stream and link to possibly pushed old output streams
bool	_active
	flag to switch output during runtime
bool	_tied
	are we tied to another DebugStream?
unsigned int	_tied_streams
	how many streams are tied to this state

Detailed Description

template<DebugLevel thislevel = 1, DebugLevel dlevel = 1, DebugLevel alevel = 1, template< DebugLevel, DebugLevel > class activator = greater_or_equal>
class Dune::DebugStream< thislevel, dlevel, alevel, activator >

Generic class to implement debug output streams.

The main function of a DebugStream is to provide output in a standard ostream fashion that is fully deactivated if the level of the stream does not meet the current requirements. More information in Debug output

Parameters

thislevel	this level
dlevel	level needed for any output to happen
alevel	level needed to switch activation flag on
activator	template describing the activation policy

Todo:

Fix visibility of internal data

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The documentation for this class was generated from the following file:

• dune/common/debugstream.hh