GNU C Library master sources branch master updated. glibc-2.23-506-g64ba173

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=64ba17317dc9343f0958755ad04af71ec3da637b

commit 64ba17317dc9343f0958755ad04af71ec3da637b
Author: Florian Weimer <fweimer@redhat.com>
Date:   Thu Jun 23 14:17:57 2016 +0200

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

diff --git a/ChangeLog b/ChangeLog
index 5f9edb4..4bfee94 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 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>
+
 	* test-skeleton.c (xmalloc, xcalloc, xrealloc): Mark as
 	potentially unused.
 
diff --git a/test-skeleton.c b/test-skeleton.c
index 0be4af1..d9bf989 100644
--- a/test-skeleton.c
+++ b/test-skeleton.c
@@ -109,10 +109,10 @@ __attribute__ ((unused))
 static void *
 xrealloc (void *p, size_t n)
 {
-  p = realloc (p, n);
-  if (p == NULL)
+  void *result = realloc (p, n);
+  if (result == NULL && (n > 0 || p == NULL))
     oom_error ("realloc", n);
-  return p;
+  return result;
 }
 
 /* Write a message to standard output.  Can be used in signal

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog       |    4 ++++
 test-skeleton.c |    6 +++---
 2 files changed, 7 insertions(+), 3 deletions(-)


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