patch 8.2.1650: Vim9: result of && and || expression is not bool in script Commit: https://github.com/vim/vim/commit/c1ec0422e43720d2e96627605532ee9806c0789f Author: Bram Moolenaar <Bram@vim.org> Date: Wed Sep 9 22:27:58 2020 +0200 patch 8.2.1650: Vim9: result of && and || expression is not bool in script Problem: Vim9: result of && and || expression cannot be assigned to a bool at the script level. Solution: Add the VAR_BOOL_OK flag. Convert to bool when needed.

Test for writing and reading a file of over 100 Kbyte

1 line: "This is the start"
3001 lines: "This is the leader"
1 line: "This is the middle"
3001 lines: "This is the trailer"
1 line: "This is the end"

STARTTEST
:%d
aThis is the start
This is the leader
This is the middle
This is the trailer
This is the endkY3000p2GY3000p
:w! Xtest
:%d
:e! Xtest
:.w! test.out
3003G:.w >>test.out
6005G:.w >>test.out
:qa!
ENDTEST