#include <deal.II/base/config.h>
#include <ostream>

Functions
	ConditionalOStream (std::ostream &stream, const bool active=true)
void	set_condition (const bool active)
bool	is_active () const
std::ostream &	get_stream () const
template<typename T>
const ConditionalOStream &	operator<< (const T &t) const
const ConditionalOStream &	operator<< (std::ostream &(*p)(std::ostream &)) const

Variables
std::ostream &	output_stream
bool	active_flag

Function Documentation

◆ set_condition()

void ConditionalOStream::set_condition ( const bool active )

Depending on the active flag set the condition of this stream to active (true) or non-active (false). An object of this class prints to cout if and only if its condition is active.

Definition at line 30 of file conditional_ostream.cc.

◆ is_active()

bool is_active ( ) const

Return the condition of the object.

◆ get_stream()

std::ostream & get_stream ( ) const

Return a reference to the stream currently in use.

◆ operator<<() [1/2]

template<typename T>

const ConditionalOStream & operator<< ( const T & t ) const

Output a constant something through this stream. This function must be const so that member objects of this type can also be used from const member functions of the surrounding class.

◆ operator<<() [2/2]

const ConditionalOStream & operator<< ( std::ostream &(* p )(std::ostream &) ) const

Treat ostream manipulators. This function must be const so that member objects of this type can also be used from const member functions of the surrounding class.

Note that compilers want to see this treated differently from the general template above since functions like std::endl are actually overloaded and can't be bound directly to a template type.

Variable Documentation

◆ output_stream

std::ostream& output_stream

private

Reference to the stream we want to write to.

Definition at line 134 of file conditional_ostream.h.

◆ active_flag

bool active_flag