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Standard library header <exception>

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Revision as of 03:56, 11 December 2012 by Bazzy (Talk | contribs)

This header is part of the error handling library.

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namespace std {
    class exception;
    class bad_exception;
    class nested_exception;
 
    typedef void (*unexpected_handler)();
    unexpected_handler get_unexpected() noexcept;
    unexpected_handler set_unexpected(unexpected_handler f) noexcept;
    [[noreturn]] void unexpected();
 
    typedef void (*terminate_handler)();
    terminate_handler get_terminate() noexcept;
    terminate_handler set_terminate(terminate_handler f) noexcept;
    [[noreturn]] void terminate() noexcept;
 
    bool uncaught_exception() noexcept;
 
    typedef /*unspecified*/ exception_ptr;
 
    exception_ptr current_exception() noexcept;
    [[noreturn]] void rethrow_exception(exception_ptr p);
    template<class E> exception_ptr make_exception_ptr(E e) noexcept;
 
    [[noreturn]] template <class T> void throw_with_nested(T&& t);
    template <class E> void rethrow_if_nested(const E& e);
}

Class std::exception

class exception {
public:
    exception() noexcept;
    exception(const exception&) noexcept;
    exception& operator=(const exception&) noexcept;
    virtual ~exception();
    virtual const char* what() const noexcept;
};

Class std::bad_exception

class bad_exception : public exception {
public:
    bad_exception() noexcept;
    bad_exception(const bad_exception&) noexcept;
    bad_exception& operator=(const bad_exception&) noexcept;
    virtual const char* what() const noexcept;
};


Class std::nested_exception

class nested_exception {
public:
    nested_exception() noexcept;
    nested_exception(const nested_exception&) noexcept = default;
    nested_exception& operator=(const nested_exception&) noexcept = default;
    virtual ~nested_exception() = default;
 
    // access functions
    [[noreturn]] void rethrow_nested() const;
    exception_ptr nested_ptr() const noexcept;
};

See Also