> It is documented in stdlib reference:
>
>   https://caml.inria.fr/pub/docs/manual-ocaml/libref/Pervasives.html

Thanks for your link.

Would it be nice to repeat such information also at other places
in the provided documentation?

Are you interested to compare the run time characteristics from the usage
of the operator “^” (for string concatenation) to the other available
programming interfaces?

Regards,
Markus

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