bug#36328: 26.2; Args out of range on search-and-replace of *.cc file

[Alan Mackenzie]

Hello, Jayden.

In article <mailman.612.1561158667.10840.bug-gnu-emacs@gnu.org> you wrote:
> [-- text/plain, encoding 7bit, charset: UTF-8, 97 lines --]

[ .... ]

> Fill a *.cc file with 100 lines of any string (e.g. "bar"). At line 101
> write a unique string (e.g. "foo").

Does your file look like:

bar
bar
bar
...
...
bar
foo

?  Or does it look like:

"bar"
"bar"
"bar"
...
...
"bar"
"foo"

?

> Close the file and reopen (emacs -Q).

OK.

> and perform search-and-replace on "foo" (replacing with any other string).

What, precisely, did you do to attempt this "search-and-replace"?  With
emacs-26.2, after emacs -Q, I did

    C-x C-f test.cc

, followed by

    M-% foo <CR> FOO

, in both possibilities for the file (see above), yet could not
reproduce the error.  The replacement command simply worked for me.

> At this point you should see "Args out of range: #<buffer test.cc>, 0, 1".

This is what I don't see.  :-(  At least, not yet.

[ .... ]

-- 
Alan Mackenzie (Nuremberg, Germany).