1 #ifndef BOOST_METAPARSE_V1_CPP11_IMPL_EMPTY_STRING_HPP 2 #define BOOST_METAPARSE_V1_CPP11_IMPL_EMPTY_STRING_HPP 3 4 // Copyright Abel Sinkovics (abel@sinkovics.hu) 2013. 5 // Distributed under the Boost Software License, Version 1.0. 6 // (See accompanying file LICENSE_1_0.txt or copy at 7 // http://www.boost.org/LICENSE_1_0.txt) 8 9 namespace boost 10 { 11 namespace metaparse 12 { 13 namespace v1 14 { 15 namespace impl 16 { 17 template <class Ignore = int> 18 struct empty_string 19 { 20 typedef empty_string type; 21 22 static constexpr char value[1] = {0}; 23 }; 24 25 template <class Ignore> 26 constexpr char empty_string<Ignore>::value[1]; 27 } 28 } 29 } 30 } 31 32 #endif 33 34