From: Bruno Haible <bruno@clisp.org>
Date: Sun, 9 May 2021 16:34:58 +0000 (+0200)
Subject: malloc-gnu, realloc-gnu, calloc-gnu tests: Verify errno is set.
X-Git-Tag: v1.0~2903
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3189c490ec29a74e91e1b800d63fb7c9f9b47d2b;p=thirdparty%2Fgnulib.git

malloc-gnu, realloc-gnu, calloc-gnu tests: Verify errno is set.

* tests/test-malloc-gnu.c: Include <errno.h>.
(main): Verify that, when an allocation larger than PTRDIFF_MAX failed,
errno is ENOMEM.
* tests/test-realloc-gnu.c: Likewise.
* tests/test-calloc-gnu.c: Likewise.
---

diff --git a/ChangeLog b/ChangeLog
index e84bc512eb..e69f4475b5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2021-05-09  Bruno Haible  <bruno@clisp.org>
+
+	malloc-gnu, realloc-gnu, calloc-gnu tests: Verify errno is set.
+	* tests/test-malloc-gnu.c: Include <errno.h>.
+	(main): Verify that, when an allocation larger than PTRDIFF_MAX failed,
+	errno is ENOMEM.
+	* tests/test-realloc-gnu.c: Likewise.
+	* tests/test-calloc-gnu.c: Likewise.
+
 2021-05-09  Bruno Haible  <bruno@clisp.org>
 
 	getrandom: Fail with ENOSYS when the system has no randomness source.
diff --git a/tests/test-calloc-gnu.c b/tests/test-calloc-gnu.c
index b46e788136..dbef019143 100644
--- a/tests/test-calloc-gnu.c
+++ b/tests/test-calloc-gnu.c
@@ -17,6 +17,8 @@
 #include <config.h>
 
 #include <stdlib.h>
+
+#include <errno.h>
 #include <stdint.h>
 
 /* Return N.
@@ -56,10 +58,10 @@ main ()
     for (size_t n = 2; n != 0; n <<= 1)
       {
         void *volatile p = calloc (PTRDIFF_MAX / n + 1, identity (n));
-        if (p != NULL)
+        if (!(p == NULL && errno == ENOMEM))
           return 2;
         p = calloc (SIZE_MAX / n + 1, identity (n));
-        if (p != NULL)
+        if (!(p == NULL && errno == ENOMEM))
           return 3;
       }
   }
diff --git a/tests/test-malloc-gnu.c b/tests/test-malloc-gnu.c
index d8e7b04a8f..13217c1b51 100644
--- a/tests/test-malloc-gnu.c
+++ b/tests/test-malloc-gnu.c
@@ -17,6 +17,8 @@
 #include <config.h>
 
 #include <stdlib.h>
+
+#include <errno.h>
 #include <stdint.h>
 
 int
@@ -33,7 +35,7 @@ main (int argc, char **argv)
     {
       size_t one = argc != 12345;
       p = malloc (PTRDIFF_MAX + one);
-      if (p != NULL)
+      if (!(p == NULL && errno == ENOMEM))
         return 1;
     }
 
diff --git a/tests/test-realloc-gnu.c b/tests/test-realloc-gnu.c
index f4c00c0bf7..a36673888b 100644
--- a/tests/test-realloc-gnu.c
+++ b/tests/test-realloc-gnu.c
@@ -17,6 +17,8 @@
 #include <config.h>
 
 #include <stdlib.h>
+
+#include <errno.h>
 #include <stdint.h>
 
 int
@@ -33,7 +35,7 @@ main (int argc, char **argv)
     {
       size_t one = argc != 12345;
       p = realloc (p, PTRDIFF_MAX + one);
-      if (p != NULL)
+      if (!(p == NULL && errno == ENOMEM))
         return 1;
     }