# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1640365203 -3600
# Node ID 0c5daf5e5514e480a99049d77e31249fbfbd6c55
# Parent  f0d7cb510ce343ac63c06fd900496815da25b31a
patch 8.2.3883: crash when switching to other regexp engine fails

Commit: https://github.com/vim/vim/commit/5937c7505f444dd896f336fa0119a93a55ebe9a2
Author: Bram Moolenaar <Bram@vim.org>
Date:   Fri Dec 24 16:46:14 2021 +0000

    patch 8.2.3883: crash when switching to other regexp engine fails

    Problem:    Crash when switching to other regexp engine fails.
    Solution:   Check for regprog being NULL.

diff --git a/src/ex_cmds.c b/src/ex_cmds.c
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -4975,6 +4975,8 @@ ex_global(exarg_T *eap)
 	    // a match on this line?
 	    match = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
 						       (colnr_T)0, NULL, NULL);
+	    if (regmatch.regprog == NULL)
+		break;  // re-compiling regprog failed
 	    if ((type == 'g' && match) || (type == 'v' && !match))
 	    {
 		ml_setmarked(lnum);
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3883,
+/**/
     3882,
 /**/
     3881,