ios_base::event
Specifies event types.
enum event {erase_event, imbue_event, copyfmt_event};
Remarks
The type is an enumerated type that describes an object that can store the callback event used as an argument to a function registered with register_callback. The distinct event values are:
copyfmt_event, to identify a callback that occurs near the end of a call to copyfmt, just before the exception mask is copied.
erase_event, to identify a callback that occurs at the beginning of a call to copyfmt, or at the beginning of a call to the destructor for *this.
imbue_event, to identify a callback that occurs at the end of a call to imbue, just before the function returns.
Example
See register_callback for an example.
Requirements
Header: <ios>
Namespace: std