From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 5 May 2025 21:02:20 +0000 (-0700)
Subject: obstack: use signed chunk sizes
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ddb1ee39fa51b0793569afaa810ef4868e6f7122;p=thirdparty%2Fgnulib.git

obstack: use signed chunk sizes

* lib/obstack.in.h (_OBSTACK_CHUNK_SIZE_T) [!__GL_GNULIB_HEADER]:
Now long, not unsigned long, since that’s what glibc does.
---

diff --git a/ChangeLog b/ChangeLog
index 8967f3d54f..eb0ba5d166 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2025-05-05  Paul Eggert  <eggert@cs.ucla.edu>
 
+	obstack: use signed chunk sizes
+	* lib/obstack.in.h (_OBSTACK_CHUNK_SIZE_T) [!__GL_GNULIB_HEADER]:
+	Now long, not unsigned long, since that’s what glibc does.
+
 	obstack: fix undefined behavior if big alignment
 	* lib/obstack.c: Include stddef.h, for offsetof.
 	(align_size_up): New static function.
diff --git a/lib/obstack.in.h b/lib/obstack.in.h
index 232414b6b4..d5a0ceff6d 100644
--- a/lib/obstack.in.h
+++ b/lib/obstack.in.h
@@ -149,7 +149,7 @@
 /* For backward compatibility, glibc limits object sizes to int range.  */
 # define _OBSTACK_INDEX_T int
 # define _OBSTACK_SIZE_T unsigned int
-# define _OBSTACK_CHUNK_SIZE_T unsigned long
+# define _OBSTACK_CHUNK_SIZE_T long int
 # define _OBSTACK_CAST(type, expr) ((type) (expr))
 # define _OBSTACK_CHUNK_CONTENTS_SIZE 4
 #endif