Patchwork [v3] std::uninitialized_copy test

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Submitter Benjamin Kosnik
Date April 17, 2012, 4:52 p.m.
Message ID <20120417095230.6e9fc5ac@adair>
Download mbox | patch
Permalink /patch/153253/
State New
Headers show

Comments

Benjamin Kosnik - April 17, 2012, 4:52 p.m.
Found this bug in 4.4 branches, fixed with the following in later
branches:
http://gcc.gnu.org/ml/gcc-patches/2010-06/msg01616.html

But the test case is useful anyway.

tested x86/linux

-benjamin
Paolo Carlini - April 17, 2012, 5:09 p.m.
On 04/17/2012 06:52 PM, Benjamin De Kosnik wrote:
> Found this bug in 4.4 branches, fixed with the following in later
> branches:
> http://gcc.gnu.org/ml/gcc-patches/2010-06/msg01616.html
>
> But the test case is useful anyway.
Definitely, thanks! The name of the new testcase seems a bit weird (for 
the FSF branches): shall we maybe refer to the original (Fedora or RHEL 
Bugzilla, I suppose) PR in a comment and then use either an explicative 
name (our current practice) or just a small number for the name of the 
testcase itself?

Thanks again,
Paolo.
Benjamin Kosnik - April 17, 2012, 5:16 p.m.
> Definitely, thanks! The name of the new testcase seems a bit weird
> (for the FSF branches): shall we maybe refer to the original (Fedora
> or RHEL Bugzilla, I suppose) PR in a comment and then use either an
> explicative name (our current practice) or just a small number for
> the name of the testcase itself?

Yes, agreed. I couldn't think of anything descriptive for this test,
but if you can please feel free to assign it something meaningful.

-benjamin

Patch

2012-04-16  Benjamin Kosnik  <bkoz@redhat.com>

	* testsuite/20_util/specialized_algorithms/uninitialized_copy/
	808590.cc: New.


diff --git a/libstdc++-v3/testsuite/20_util/specialized_algorithms/uninitialized_copy/808590.cc b/libstdc++-v3/testsuite/20_util/specialized_algorithms/uninitialized_copy/808590.cc
new file mode 100644
index 0000000..7ccd8da
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/specialized_algorithms/uninitialized_copy/808590.cc
@@ -0,0 +1,48 @@ 
+// Copyright (C) 2012 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without Pred the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <vector>
+#include <stdexcept>
+
+// 4.4.x only
+struct c 
+{
+  void *m;
+
+  c(void* o = 0) : m(o) {}
+  c(const c &r) : m(r.m) {}
+
+  template<class T>
+    explicit c(T &o) : m((void*)0xdeadfbeef) { }
+};
+
+int main() 
+{
+  std::vector<c> cbs;
+  const c cb((void*)0xcafebabe);
+
+  for (int fd = 62; fd < 67; ++fd) 
+    {
+      cbs.resize(fd + 1);
+      cbs[fd] = cb;
+    }
+
+  for (int fd = 62; fd< 67; ++fd)
+    if (cb.m != cbs[fd].m)
+      throw std::runtime_error("wrong");
+  return 0;
+}