Travis,
If you could, give the following patch a whirl (or quick review
at least).
-----
$ svn diff
Index: tests/src/new.cpp
===================================================================
--- tests/src/new.cpp (revision 644444)
+++ tests/src/new.cpp (working copy)
@@ -604,6 +604,17 @@
return ret;
}
+static void
+rwt_checkpoint_compare (_RWSTD_SIZE_T* diffs, _RWSTD_SIZE_T n,
+ const _RWSTD_SIZE_T* st0, const _RWSTD_SIZE_T*
st1,
+ bool& diff_0)
+{
+ for (_RWSTD_SIZE_T i = 0; i != n; ++i) {
+ diffs [i] = st1 [i] - st0 [i];
+ if (diffs [i])
+ diff_0 = false;
+ }
+}
_TEST_EXPORT rwt_free_store*
rwt_checkpoint (const rwt_free_store *st0, const rwt_free_store *st1)
@@ -616,21 +627,24 @@
// of the free_store specified by the arguments
static rwt_free_store diff;
-
memset (&diff, 0, sizeof diff);
- size_t* diffs = diff.new_calls_;
- const size_t* st0_args = st0->new_calls_;
- const size_t* st1_args = st1->new_calls_;
-
bool diff_0 = true; // difference of 0 (i.e., none)
- for (size_t i = 0; i != 16; ++i) {
- diffs [i] = st1_args [i] - st0_args [i];
- if (diffs [i])
- diff_0 = false;
- }
+#define EXTENT(array) (sizeof (array) / sizeof(*array))
+#define COMPARE(member) \
+ rwt_checkpoint_compare (diff.member, EXTENT(diff.member),\
+ st0->member, st1->member, diff_0)
+ COMPARE(new_calls_);
+ COMPARE(delete_calls_);
+ COMPARE(delete_0_calls_);
+ COMPARE(blocks_);
+ COMPARE(bytes_);
+ COMPARE(max_blocks_);
+ COMPARE(max_bytes_);
+ COMPARE(max_block_size_);
+
if (diff_0)
return 0;
-----
The 0.new test seems to be okay with it.
Thanks,
Brad.
> -----Original Message-----
> From: Travis Vitek (JIRA) [mailto:[EMAIL PROTECTED]
> Sent: Thursday, April 03, 2008 3:23 PM
> To: Eric Lemings
> Subject: [jira] Commented: (STDCXX-761) [HP aCC 6.16] Out of
> bound access in new.cpp
>
>
> [
> https://issues.apache.org/jira/browse/STDCXX-761?page=com.atla
> ssian.jira.plugin.system.issuetabpanels:comment-tabpanel&focus
> edCommentId=12585290#action_12585290 ]
>
> Travis Vitek commented on STDCXX-761:
> -------------------------------------
>
> It looks like someone is being tricky. They are assuming that
> every member in {{rwt_free_store}} is contiguous [i.e. no
> padding], and they are actually comparing each of
> {{new_calls_}}, {{delete_calls_}}, {{blocks_}}, {{bytes_}},
> {{max_blocks_}}, {{max_bytes_}} and {{max_block_size_}} with
> that one loop. If you decide to fix this, you'll end up
> probably end up writing eight loops of two iterations each.
>
> Also, I'd prefer that the 2 isn't hardcoded and that you use
> something like {{sizeof (array) / sizeof (*array)}}, or a
> size macro instead.
>
> > [HP aCC 6.16] Out of bound access in new.cpp
> > --------------------------------------------
> >
> > Key: STDCXX-761
> > URL:
> https://issues.apache.org/jira/browse/STDCXX-761
> > Project: C++ Standard Library
> > Issue Type: Sub-task
> > Components: Test Driver
> > Affects Versions: 4.2.0
> > Environment: $ uname -sr && aCC -V
> > HP-UX B.11.31
> > aCC: HP C/aC++ B3910B A.06.16 [Nov 26 2007]
> > Reporter: Scott (Yu) Zhong
> > Assignee: Eric Lemings
> > Fix For: 4.2.1
> >
> > Original Estimate: 2h
> > Remaining Estimate: 2h
> >
> > When compiled with HP aCC 6.16 +w +O, the test driver
> source file
> [new.cpp|http://svn.apache.org/repos/asf/stdcxx/trunk/tests/sr
> c/new.cpp] produces the warnings below:
> > {noformat}
> > aCC -c -I$(TOPDIR)/include -I$(BUILDDIR)/include
> -I$(TOPDIR)/tests/include -AA +O2 +DD64 +w \
> > +W392 +W655 +W684 +W818 +W819 +W849 +W2193 +W2236
> +W2261 +W2340 +W2401 +W2487 +W4227 \
> > +W4229 +W4231 +W4235 +W4237 +W4249 +W4255 +W4272 +W4284
> +W4285 +W4286 +W4296 +W4297 +W3348 \
> > $(TOPDIR)/tests/src/new.cpp
> > "$(TOPDIR)/tests/src/new.cpp", line 629, procedure
> rwt_checkpoint: warning #20206-D: Out of bound access (In
> expression "(unsigned long long*)(&diff)->new_calls_+i",
> (&diff)->new_calls_ (type: unsigned long long [2]) has byte
> range [0 .. 15], writing byte range [0 .. 127].)
> > {noformat}
>
> --
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> You can reply to this email to add a comment to the issue online.
>
>
