package ocaml-compiler

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Official release of OCaml 5.5.2

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dune-project

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ocaml.org Edit opam file Versions (24)

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ocaml-5.5.2.tar.gz

sha256=bb3ffef5e4fce4f04915b9f254f570663311e1f227fd669aa87a5ef7de9a1523

doc/stdlib/Stdlib/Callback/index.html

Module `Stdlib.Callback`Source

Registering OCaml values with the C runtime.

This module allows OCaml values to be registered with the C runtime under a symbolic name, so that C code can later call back registered OCaml functions, or raise registered OCaml exceptions.

Sourceval register : string -> 'a -> unit

Callback.register n v registers the value v under the name n. C code can later retrieve a handle to v by calling caml_named_value(n).

Sourceval register_exception : string -> exn -> unit

Callback.register_exception n exn registers the exception contained in the exception value exn under the name n. C code can later retrieve a handle to the exception by calling caml_named_value(n). The exception value thus obtained is suitable for passing as first argument to raise_constant or raise_with_arg.