1 // 2 // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com) 3 // 4 // Distributed under the Boost Software License, Version 1.0. (See accompanying 5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6 // 7 // Official repository: https://github.com/boostorg/beast 8 // 9 10 #ifndef BOOST_BEAST_STRING_HPP 11 #define BOOST_BEAST_STRING_HPP 12 13 #include <boost/beast/core/detail/config.hpp> 14 #include <boost/beast/core/string_type.hpp> 15 16 namespace boost { 17 namespace beast { 18 19 /** Returns `true` if two strings are equal, using a case-insensitive comparison. 20 21 The case-comparison operation is defined only for low-ASCII characters. 22 23 @param lhs The string on the left side of the equality 24 25 @param rhs The string on the right side of the equality 26 */ 27 BOOST_BEAST_DECL 28 bool 29 iequals( 30 beast::string_view lhs, 31 beast::string_view rhs); 32 33 /** A case-insensitive less predicate for strings. 34 35 The case-comparison operation is defined only for low-ASCII characters. 36 37 As of C++14, containers using this class as the `Compare` type will take part 38 in heterogeneous lookup if the search term is implicitly convertible to 39 @ref string_view. 40 */ 41 struct iless 42 { 43 BOOST_BEAST_DECL 44 bool 45 operator()( 46 string_view lhs, 47 string_view rhs) const; 48 49 using is_transparent = void; 50 }; 51 52 /** A case-insensitive equality predicate for strings. 53 54 The case-comparison operation is defined only for low-ASCII characters. 55 56 As of C++14, containers using this class as the `Compare` type will take part 57 in heterogeneous lookup if the search term is implicitly convertible to 58 @ref string_view. 59 */ 60 struct iequal 61 { 62 bool operator ()boost::beast::iequal63 operator()( 64 string_view lhs, 65 string_view rhs) const 66 { 67 return iequals(lhs, rhs); 68 } 69 70 using is_transparent = void; 71 }; 72 73 } // beast 74 } // boost 75 76 #ifdef BOOST_BEAST_HEADER_ONLY 77 #include <boost/beast/core/impl/string.ipp> 78 #endif 79 80 #endif 81