Mercurial > vim
view src/testdir/test77a.in @ 25733:4b2616ffe32b v8.2.3402
patch 8.2.3402: invalid memory access when using :retab with large value
Commit: https://github.com/vim/vim/commit/b7081e135a16091c93f6f5f7525a5c58fb7ca9f9
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Sep 4 18:47:28 2021 +0200
patch 8.2.3402: invalid memory access when using :retab with large value
Problem: Invalid memory access when using :retab with large value.
Solution: Check the number is positive.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 04 Sep 2021 19:00:03 +0200 |
| parents | e705ea6e855b |
| children |
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Inserts 2 million lines with consecutive integers starting from 1 (essentially, the output of GNU's seq 1 2000000), writes them to Xtest and writes its cksum to test.out. We need 2 million lines to trigger a call to mf_hash_grow(). If it would mess up the lines the checksum would differ. cksum is part of POSIX and so should be available on most Unixes. If it isn't available then the test will be skipped. VMS does not have CKSUM but has a built in CHECKSUM - it should be used STARTTEST :silent! while 0 : e! test.ok : w! test.out : qa! :silent! endwhile :if !has("vms") : e! test.ok : w! test.out : qa! :endif :set fileformat=unix undolevels=-1 ggdG :let i = 1 :while i <= 2000000 | call append(i, range(i, i + 99)) | let i += 100 | endwhile ggdd :w! Xtest. :r !@test77a.com Xtest. :s/\s/ /g :set fileformat& :.w! test.out :qa! ENDTEST