Paul Eggert wrote:
> @@ -63,9 +67,15 @@ xcharalloc (size_t n)
> void *
> xrealloc (void *p, size_t s)
> {
> - void *r = realloc (p, s);
> - if (!r && (!p || s))
> + /* Work around realloc glitch by treating a 0 size as if it were 1,
> + to avoid undefined behavior in strict C23 platforms,
> + so that returning NULL is equivalent to failing. */
> + void *r = realloc (p, s ? s : 1);
> + if (!r)
> xalloc_die ();
After this change, 'xalloc' does not need the 'realloc-gnu' module any more.
2024-10-25 Bruno Haible <[email protected]>
xalloc: Adjust dependencies after last change.
* modules/xalloc (Depends-on): Remove realloc-gnu. Add realloc-posix.
diff --git a/modules/xalloc b/modules/xalloc
index 15059bf47f..3ff92ae57f 100644
--- a/modules/xalloc
+++ b/modules/xalloc
@@ -14,7 +14,7 @@ ialloc
idx
malloc-gnu
minmax
-realloc-gnu
+realloc-posix
reallocarray
stdckdint
stdint
