patch 8.2.4832: passing zero instead of NULL to a pointer argument Commit: https://github.com/vim/vim/commit/fc78a0369e0d371a1a85d07045ff25d8695e8f8c Author: zeertzjq <zeertzjq@outlook.com> Date: Tue Apr 26 22:11:38 2022 +0100 patch 8.2.4832: passing zero instead of NULL to a pointer argument Problem: Passing zero instead of NULL to a pointer argument. Solution: Use NULL. (closes https://github.com/vim/vim/issues/10296)

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