<exception>

Library:  Language support

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The header <exception> is part of the Language support library of the Standard C++ Library. It contains definitions of types and functions related to the handling of exceptions in a C++ program. The header defines the classes exception and bad_exception, the types unexpected_handler and terminate_handler, and the functions set_unexpected(), unexpected(), set_terminate(), terminate(), and uncaught_exception().

namespace std {
  class exception;
  class bad_exception;

  typedef void (*unexpected_handler)();
  unexpected_handler set_unexpected(unexpected_handler)
                     throw();
  void unexpected();

  typedef void (*terminate_handler)();
  terminate_handler set_terminate(terminate_handler) throw();
  void terminate();

  bool uncaught_exception();
}

Exceptions, exception, bad_exception

ISO/IEC 14882:1998 -- International Standard for Information Systems --Programming Language C++, Section 19.1