1Callback(3) OCaml library Callback(3)
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6 Callback - Registering Caml values with the C runtime.
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9 Module Callback
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12 Module Callback
13 : sig end
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16 Registering Caml values with the C runtime.
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18 This module allows Caml values to be registered with the C runtime
19 under a symbolic name, so that C code can later call back registered
20 Caml functions, or raise registered Caml exceptions.
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28 val register : string -> 'a -> unit
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31 Callback.register n v registers the value v under the name n . C code
32 can later retrieve a handle to v by calling caml_named_value(n) .
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37 val register_exception : string -> exn -> unit
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40 Callback.register_exception n exn registers the exception contained in
41 the exception value exn under the name n . C code can later retrieve a
42 handle to the exception by calling caml_named_value(n) . The exception
43 value thus obtained is suitable for passign as first argument to
44 raise_constant or raise_with_arg .
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51OCamldoc 2017-03-22 Callback(3)