[type_traits] adds get_template_basename to get name before the arg list

dune/xt/common/test/type_traits.cc

+// This file is part of the dune-xt-common project:
+//   https://github.com/dune-community/dune-xt-common
+// Copyright 2009-2017 dune-xt-common developers and contributors. All rights reserved.
+// License: Dual licensed as BSD 2-Clause License (http://opensource.org/licenses/BSD-2-Clause)
+//      or  GPL-2.0+ (http://opensource.org/licenses/gpl-license)
+//          with "runtime exception" (http://www.dune-project.org/license.html)
+// Authors:
+//   Rene Milk       (2017)
+
+#include <dune/xt/common/test/main.hxx>
+
+#include <iostream>
+
+#include <dune/xt/common/type_traits.hh>
+
+using namespace Dune::XT::Common;
+using namespace std;
+
+template <class T>
+struct Foo
+{
+};
+
+GTEST_TEST(TplName, Match)
+{
+  Foo<Foo<int>> foo;
+  EXPECT_EQ(get_template_basename(foo), "Foo");
+}

dune/xt/common/type_traits.hh

@@ -95,6 +95,13 @@ std::string get_typename(const T&)
   return Typename<T>::value();
 }
 
+template <class T>
+std::string get_template_basename(const T&)
+{
+  const auto str = Typename<T>::value();
+  const auto r = str.find("<");
+  return str.substr(0, r);
+}
 
 template <class T, class Ptr = void>
 struct is_smart_ptr