bug#56413: [PATCH 1/1] scm_i_utf8_string_hash: compute u8 chars not bytes

[Rob Browning]

Rob Browning <rlb@defaultvalue.org> writes:

> Noticed while investigating a migration to utf-8 strings.  After making
> changes that routed non-ascii symbol hashing through this function,
> encoding-iso88597.test began intermittently failing because it would
> traverse trailing garbage when u8_strnlen reported 8 chars instead of 4.
>
> Change the scm_i_str2symbol internal hash type to unsigned long to
> explicitly match the hashing result type.

Hmm.  I suppose the current test could be handled on the scheme side
instead.  (I'd started off attempting some more direct, elaborate tests
that didn't pan out.)  Happy to rework that if desired.

-- 
Rob Browning
rlb @defaultvalue.org and @debian.org
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