patch 8.2.3659: integer overflow with large line number Commit: https://github.com/vim/vim/commit/03725c5795ae5b8c14da4a39cd0ce723c6dd4304 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Nov 24 12:17:53 2021 +0000 patch 8.2.3659: integer overflow with large line number Problem: Integer overflow with large line number. Solution: Check for overflow. (closes https://github.com/vim/vim/issues/9202)

Tests for complicated + argument to :edit command

STARTTEST
:$-1w! Xfile1
:$w! Xfile2
:edit +1|s/|/PIPE/|w Xfile1| e Xfile2|1 | s/\//SLASH/|w
:w! test.out
:e Xfile1
:w >> test.out
:qa!
ENDTEST

The result should be in Xfile1: "fooPIPEbar", in Xfile2: "fooSLASHbar"
foo|bar
foo/bar