From: Paul Eggert <eggert@cs.ucla.edu>
Date: Thu, 1 Aug 2024 14:15:01 +0000 (-0700)
Subject: ptrdiff_t, not ssize_t
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bf195d4ae420da5c44730f8f041ae6cf0642a606;p=thirdparty%2Ftar.git

ptrdiff_t, not ssize_t

* src/buffer.c (bufmap_reset, _flush_write):
Use ptrdiff_t, not ssize_t, to record pointer differences.
POSIX allows systems where size_t is 64 bits but ssize_t is only 32;
Ultrix used to do that, though no current systems do.
---

diff --git a/src/buffer.c b/src/buffer.c
index 9c36a089..267b43eb 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -195,7 +195,7 @@ bufmap_free (struct bufmap *mark)
 }
 
 static void
-bufmap_reset (struct bufmap *map, ssize_t fixup)
+bufmap_reset (struct bufmap *map, ptrdiff_t fixup)
 {
   bufmap_free (map);
   if (map)
@@ -877,7 +877,7 @@ _flush_write (void)
       if (map)
 	{
 	  size_t delta = status - map->start * BLOCKSIZE;
-	  ssize_t diff;
+	  ptrdiff_t diff;
 	  map->nblocks += delta / BLOCKSIZE;
 	  if (delta > map->sizeleft)
 	    delta = map->sizeleft;