1 // (C) Copyright Gennadiy Rozental 2001-2015. 2 // Distributed under the Boost Software License, Version 1.0. 3 // (See accompanying file LICENSE_1_0.txt or copy at 4 // http://www.boost.org/LICENSE_1_0.txt) 5 // 6 // See http://www.boost.org/libs/test for the library home page. 7 // 8 9 //[snippet16 10 class const_string { 11 public: 12 //... 13 char operator[]( size_t index ) const; 14 char at( size_t index ) const; 15 //... 16 }; 17 //] 18