bug#53661: 29.0.50; electric-pair-mode not respecting electric-pair-inhibit-predicate.

[Ergus via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

On Mon, Jan 31, 2022 at 08:04:02PM +0200, Eli Zaretskii wrote:
>> Date: Mon, 31 Jan 2022 18:29:31 +0100
>> From: Ergus <spacibba@aol.com>
>> Cc: 53661@debbugs.gnu.org
>>
>> >> (memq syntax '(?\( ?\" ?\$))
>> >>
>> >> So, for other pairs, the function electric-pair-inhibit-predicate is
>> >> never called.
>> >
>> >The above condition looks at the _syntax_ of a character, not at the
>> >character itself.  So what do you find "hard-coded" there,and what
>> >kind of pairs of characters did you want to add that don't have one of
>> >those syntaxes?
>>
>> Hi Eli:
>>
>> I wanted to add "<>" so I added to my init:
>>
>> (add-to-list 'electric-pair-pairs '(?< . ?>))
>
>And it didn't work because of the hard-coded syntaxes?
>
Adding to the list worked correctly, What didn't work was to use the
electric-pair-inhibit-predicate that was never called, so a < always
inserted a >.

>What is the syntax of ?< in the mode where you wanted to add that?

It is just c++-mode.