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-rw-r--r--malloc/tst-mcheck.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/malloc/tst-mcheck.c b/malloc/tst-mcheck.c
new file mode 100644
index 0000000000..16784912a9
--- /dev/null
+++ b/malloc/tst-mcheck.c
@@ -0,0 +1,91 @@
+/* Copyright (C) 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static int errors = 0;
+
+static void
+merror (const char *msg)
+{
+ ++errors;
+ printf ("Error: %s\n", msg);
+}
+
+int
+main (void)
+{
+ void *p, *q;
+
+ errno = 0;
+
+ p = malloc (-1);
+
+ if (p != NULL)
+ merror ("malloc (-1) succeeded.");
+ else if (errno != ENOMEM)
+ merror ("errno is not set correctly.");
+
+ p = malloc (10);
+ if (p == NULL)
+ merror ("malloc (10) failed.");
+
+ p = realloc (p, 0);
+ if (p != NULL)
+ merror ("realloc (p, 0) failed.");
+
+ p = malloc (0);
+ if (p == NULL)
+ merror ("malloc (0) failed.");
+
+ p = realloc (p, 0);
+ if (p != NULL)
+ merror ("realloc (p, 0) failed.");
+
+ q = malloc (256);
+ if (q == NULL)
+ merror ("malloc (256) failed.");
+
+ p = malloc (512);
+ if (p == NULL)
+ merror ("malloc (512) failed.");
+
+ if (realloc (p, -256) != NULL)
+ merror ("realloc (p, -256) succeeded.");
+ else if (errno != ENOMEM)
+ merror ("errno is not set correctly.");
+
+ free (p);
+
+ p = malloc (512);
+ if (p == NULL)
+ merror ("malloc (512) failed.");
+
+ if (realloc (p, -1) != NULL)
+ merror ("realloc (p, -1) succeeded.");
+ else if (errno != ENOMEM)
+ merror ("errno is not set correctly.");
+
+ free (p);
+ free (q);
+
+ return errors != 0;
+}