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std::ios_ba...ent_callback(3) C++ Standard Libarystd::ios_ba...ent_callback(3)

NAME
       std::ios_base::event_callback - std::ios_base::event_callback

Synopsis
	  typedef  void	 (*event_callback)(event  type,	ios_base& ios, int in-
       dex);

	  The type of function callbacks that can be registered	 using	regis-
       ter_callback() to
	  be called on specific	events.

	  type	is a value of type ios_base::event which indicates the type of
       the event that
	  will invoke this callback.

	  ios refers to	the stream object for which the	callback  is  invoked:
       *this is	passed
	  as  the  argument  when  callbacks  are invoked by std::ios_base and
       std::basic_ios
	  member functions.

	  index	is the user-provided value passed to register_callback()  when
       registering the
	  function.

See also
	  copyfmt	    copies formatting information
			    (public	member	   function	of    std::ba-
       sic_ios<CharT,Traits>)
	  imbue		    sets locale
			    (public member function)
	  destructor	    destructs the object
	  [virtual]	    (virtual public member function)
	  register_callback registers event callback function
			    (public member function)

http://cppreference.com		  2022.07.31	 std::ios_ba...ent_callback(3)

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