How to break when a specific exception type is thrown in GDB?

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EDIT

The documentation suggests that catch throw <exceptname> can be used to break whenever an exception of type <exceptname> is thrown; however, that doesn’t seem to work in practice.

(gdb) help catch
Set catchpoints to catch events.
Raised signals may be caught:
        catch signal              - all signals
        catch signal <signame>    - a particular signal
Raised exceptions may be caught:
        catch throw               - all exceptions, when thrown
        catch throw <exceptname>  - a particular exception, when thrown
        catch catch               - all exceptions, when caught
        catch catch <exceptname>  - a particular exception, when caught
Thread or process events may be caught:
        catch thread_start        - any threads, just after creation
        catch thread_exit         - any threads, just before expiration
        catch thread_join         - any threads, just after joins
Process events may be caught:
        catch start               - any processes, just after creation
        catch exit                - any processes, just before expiration
        catch fork                - calls to fork()
        catch vfork               - calls to vfork()
        catch exec                - calls to exec()
Dynamically-linked library events may be caught:
        catch load                - loads of any library
        catch load <libname>      - loads of a particular library
        catch unload              - unloads of any library
        catch unload <libname>    - unloads of a particular library
The act of your program's execution stopping may also be caught:
        catch stop

C++ exceptions may be caught:
        catch throw               - all exceptions, when thrown
        catch catch               - all exceptions, when caught
Ada exceptions may be caught:
        catch exception           - all exceptions, when raised
        catch exception <name>    - a particular exception, when raised
        catch exception unhandled - all unhandled exceptions, when raised
        catch assert              - all failed assertions, when raised

Do "help set follow-fork-mode" for info on debugging your program
after a fork or vfork is caught.

Do "help breakpoints" for info on other commands dealing with breakpoints.

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