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test-skeleton.c (xrealloc): Support realloc-as-free

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If the requested size is zero, realloc returns NULL, but the
deallocation is still successful, unless the pointer is also
NULL, when realloc behaves as malloc (0).
This commit is contained in:
Florian Weimer
2016-06-23 14:17:57 +02:00
parent 9d52cb01f2
commit 64ba17317d
2 changed files with 7 additions and 3 deletions
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ChangeLog
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@@ -1,3 +1,7 @@
2016-06-23 Florian Weimer <fweimer@redhat.com>
* test-skeleton.c (xrealloc): Support deallocation with n == 0.
2016-06-23 Florian Weimer <fweimer@redhat.com> 2016-06-23 Florian Weimer <fweimer@redhat.com>
* test-skeleton.c (xmalloc, xcalloc, xrealloc): Mark as * test-skeleton.c (xmalloc, xcalloc, xrealloc): Mark as

6
test-skeleton.c
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@@ -109,10 +109,10 @@ __attribute__ ((unused))
static void * static void *
xrealloc (void *p, size_t n) xrealloc (void *p, size_t n)
{ {
p = realloc (p, n); void *result = realloc (p, n);
if (p == NULL) if (result == NULL && (n > 0 || p == NULL))
oom_error ("realloc", n); oom_error ("realloc", n);
return p; return result;
} }
/* Write a message to standard output. Can be used in signal /* Write a message to standard output. Can be used in signal