From: Bram Moolenaar <Bram@vim.org>
Date: Sat, 12 Feb 2022 21:16:21 +0000 (+0000)
Subject: patch 8.2.4363: MS-Windows: running out of memory for a very long line
X-Git-Tag: v8.2.4363
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e38555ece7d3fe1edc6681ec70fe5586a524862;p=thirdparty%2Fvim.git

patch 8.2.4363: MS-Windows: running out of memory for a very long line

Problem:    MS-Windows: running out of memory for a very long line.
Solution:   Use a 32 bit value for MAXCOL also when ints are 64 bits.
---

diff --git a/src/version.c b/src/version.c
index 1fc176779d..18f7892f18 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4363,
 /**/
     4362,
 /**/
diff --git a/src/vim.h b/src/vim.h
index 3fea0d9684..09303e98c3 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1739,7 +1739,9 @@ typedef unsigned short disptick_T;	// display tick type
 # define MAXCOL (0x3fffffffL)		// maximum column number, 30 bits
 # define MAXLNUM (0x3fffffffL)		// maximum (invalid) line number
 #else
-# define MAXCOL  INT_MAX		// maximum column number
+  // MAXCOL used to be INT_MAX, but with 64 bit ints that results in running
+  // out of memory when trying to allocate a very long line.
+# define MAXCOL  0x7fffffffL		// maximum column number
 # define MAXLNUM LONG_MAX		// maximum (invalid) line number
 #endif