Squashed 'third_party/boostorg/concept_check/' content from commit ed0a0eb

Change-Id: Ib7230965334f9501601efc300242efde8352a380
git-subtree-dir: third_party/boostorg/concept_check
git-subtree-split: ed0a0ebd72f778cfa4931e0538ea34c28db3a42b
diff --git a/bad_error_eg.cpp b/bad_error_eg.cpp
new file mode 100644
index 0000000..5f8d892
--- /dev/null
+++ b/bad_error_eg.cpp
@@ -0,0 +1,14 @@
+#include <vector>
+#include <complex>
+#include "algorithm"
+
+int main()
+{
+    std::vector<std::complex<float> > v;
+    std_::stable_sort(v.begin(), v.end());
+}
+
+// (C) Copyright Jeremy Siek 2000.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)