patch 8.0.0614: float2nr() is not exactly right commit https://github.com/vim/vim/commit/863e80b4451b5102b41bebf9ddca3a420de746fa Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 4 20:30:00 2017 +0200 patch 8.0.0614: float2nr() is not exactly right Problem: float2nr() is not exactly right. Solution: Make float2nr() more accurate. Turn test64 into a new style test. (Hirohito Higashi, closes #1688)

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