On 20 January 2018 at 22:08, john skaller <[email protected]> wrote:
> According to Real World Ocaml string_of_char_ptr can be used to convert a
> C char* to an Ocaml string. But I can’t find it anywhere in the API!
>
> Any clues?
I don't think that function is exposed in the API, at least in recent
versions. But if you have a 'char ptr' value 'p' then you can convert
it to a string using 'coerce':
coerce (ptr char) string p
For example:
# let getenv = foreign "getenv" (string @-> returning (ptr char));;
val getenv : string -> char Ctypes_static.ptr = <fun>
# let p = getenv "USER";;
val p : char Ctypes_static.ptr = (char*) 0x7ffe712cd9f8
# coerce (ptr char) string p;;
- : string = "jeremy"
Kind regards,
Jeremy
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