Continuing to work through regex, and updated libcxx_by_chapter.pdf with weekly test results

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@106790 91177308-0d34-0410-b5e6-96231b3b80d8

test/re/re.regex/re.regex.construct/default.pass.cpp

@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <regex>
+
+// template <class charT, class traits = regex_traits<charT>> class basic_regex;
+
+// basic_regex();
+
+#include <regex>
+#include <cassert>
+
+template <class CharT>
+void
+test()
+{
+    std::basic_regex<CharT> r;
+    assert(r.flags() == 0);
+    assert(r.mark_count() == 0);
+}
+
+int main()
+{
+    test<char>();
+    test<wchar_t>();
+}