bug#23949: 25.0.95; Regression in handling error caused by (string-match-p "." nil)

[Kaushal Modi]

Hi Eli,

This is what I get (obviously odd-looking string):

(gdb) frame 9

#9  0x0000000000624397 in Fread_from_string (string=54138084, start=0, end=0) at lread.c:2075

2075      ret = read_internal_start (string, start, end);

(gdb) p string

$15 = 54138084

(gdb) xstring

$16 = (struct Lisp_String *) 0x33a14e0

"(nilory is relative, it is com"

Looks like the 'nil' argument in '(string-match-p "." nil)' somehow did this?

(BTW this debug session is on the 2f67f8a commit of master (very recent, today). But the bug is present on emacs-25 too.)

On Tue, Jul 12, 2016 at 9:14 AM Eli Zaretskii <eliz@gnu.org> wrote:

In this frame, please show the value of 'string', like this:

 (gdb) frame 9
 (gdb) p string
 (gdb) xstring

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Kaushal Modi