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std::ios_base::event_callback(3) C++ Standard Libary std::ios_base::event_callback(3)

NAME

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

Synopsis


typedef void (*event_callback)(event type, ios_base& ios, int index);


The type of function callbacks that can be registered using register_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::basic_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)

2022.07.31 http://cppreference.com