neovim

commit 26641c0c56148ca9c6726a202527be625b1eec46
parent d4a8d169a297bfe7aefb80b040062449a3152eaa
Author: Jan Edmund Lazo <jan.lazo@mail.utoronto.ca>
Date:   Sat, 29 Nov 2025 15:06:13 -0500

vim-patch:9.0.0010: returning 0 for has('patch-9.0.0') is inconsistent

Problem:    Returning 0 for has('patch-9.0.0') is inconsistent.
Solution:   Make it return 1. (closes vim/vim#10640)

https://github.com/vim/vim/commit/b0375d466e5ca57dca71995c342870b3226d8115

Co-authored-by: Bram Moolenaar <Bram@vim.org>

Diffstat:
M
src/nvim/version.c
 | 
5
++++-
M
test/old/testdir/test_functions.vim
 | 
3
+++

2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/nvim/version.c b/src/nvim/version.c
@@ -2543,11 +2543,14 @@ bool has_vim_patch(int n)
   // Perform a binary search.
   int l = 0;
   int h = (int)(ARRAY_SIZE(included_patches)) - 1;
-  while (l < h) {
+  while (true) {
     const int m = (l + h) / 2;
     if (included_patches[m] == n) {
       return true;
     }
+    if (l == h) {
+      break;
+    }
     if (included_patches[m] < n) {
       h = m;
     } else {
diff --git a/test/old/testdir/test_functions.vim b/test/old/testdir/test_functions.vim
@@ -44,6 +44,9 @@ func Test_has()
   " Will we ever have patch 9999?
   let ver = 'patch-' .. v:version / 100 .. '.' .. v:version % 100 .. '.9999'
   call assert_equal(0, has(ver))
+
+  " There actually isn't a patch 9.0.0, but this is more consistent.
+  call assert_equal(1, has('patch-9.0.0'))
 endfunc
 
 func Test_empty()