1 files changed, 35 insertions, 0 deletions
diff --git a/boost/metaparse/v1/cpp11/impl/at_c.hpp b/boost/metaparse/v1/cpp11/impl/at_c.hpp
new file mode 100644
index 0000000000..17332af1f6
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+++ b/boost/metaparse/v1/cpp11/impl/at_c.hpp
@@ -0,0 +1,35 @@
+#ifndef BOOST_METAPARSE_V1_CPP11_IMPL_AT_C_HPP
+#define BOOST_METAPARSE_V1_CPP11_IMPL_AT_C_HPP
+
+// Copyright Abel Sinkovics (abel@sinkovics.hu)  2013.
+// 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)
+
+#include <boost/metaparse/v1/cpp11/fwd/string.hpp>
+
+#include <boost/mpl/char.hpp>
+
+namespace boost
+{
+  namespace metaparse
+  {
+    namespace v1
+    {
+      namespace impl
+      {
+        template <class S, int N>
+        struct at_c;
+
+        template <char C, char... Cs, int N>
+        struct at_c<string<C, Cs...>, N> : at_c<string<Cs...>, N - 1> {};
+
+        template <char C, char... Cs>
+        struct at_c<string<C, Cs...>, 0> : boost::mpl::char_<C> {};
+      }
+    }
+  }
+}
+
+#endif
+