commit 07da99aad93c9364acb7efdab47c27ba698f6313

Author: Florian Weimer <fweimer@redhat.com>

Date:   Tue Oct 30 13:55:01 2018 +0100

    stdlib/tst-strtod-overflow: Switch to support_blob_repeat

    This is another test with an avoidable large memory allocation.

diff --git a/stdlib/tst-strtod-overflow.c b/stdlib/tst-strtod-overflow.c

index d14638d68ef4f471..dc53c1e521443e1d 100644

--- a/stdlib/tst-strtod-overflow.c

+++ b/stdlib/tst-strtod-overflow.c

@@ -19,6 +19,8 @@

 #include <stdio.h>

 #include <stdlib.h>

 #include <string.h>

+#include <support/blob_repeat.h>

+#include <support/test-driver.h>

 #define EXPONENT "e-2147483649"

 #define SIZE 214748364

@@ -26,21 +28,23 @@

 static int

 do_test (void)

 {

-  char *p = malloc (1 + SIZE + sizeof (EXPONENT));

-  if (p == NULL)

+  struct support_blob_repeat repeat = support_blob_repeat_allocate

+    ("0", 1, 1 + SIZE + sizeof (EXPONENT));

+  if (repeat.size == 0)

     {

-      puts ("malloc failed, cannot test for overflow");

-      return 0;

+      puts ("warning: memory allocation failed, cannot test for overflow");

+      return EXIT_UNSUPPORTED;

     }

+  char *p = repeat.start;

   p[0] = '1';

-  memset (p + 1, '0', SIZE);

   memcpy (p + 1 + SIZE, EXPONENT, sizeof (EXPONENT));

   double d = strtod (p, NULL);

   if (d != 0)

     {

-      printf ("strtod returned wrong value: %a\n", d);

+      printf ("error: strtod returned wrong value: %a\n", d);

       return 1;

     }

+  support_blob_repeat_free (&repeat);

   return 0;

 }