IP6.hpp

   1 #ifndef IP6_DOT_HPP
   2 #define IP6_DOT_HPP
   3
   4 #include <string>
   5 #include <string_view>
   6
   7 namespace IP6 {
   8 auto is_private(std::string_view addr) -> bool;
   9 auto is_address(std::string_view addr) -> bool;
  10 auto is_address_literal(std::string_view addr) -> bool;
  11 auto to_address_literal(std::string_view addr) -> std::string;
  12 auto reverse(std::string_view addr) -> std::string;
  13
  14 constexpr char lit_pfx[] = "[IPv6:";
  15 constexpr auto lit_pfx_sz{sizeof(lit_pfx) - 1};
  16
  17 constexpr char lit_sfx[] = "]";
  18 constexpr auto lit_sfx_sz{sizeof(lit_sfx) - 1};
  19
  20 constexpr auto lit_extra_sz{lit_pfx_sz + lit_sfx_sz};
  21
  22 constexpr auto loopback_literal{"[IPv6:::1]"};
  23
  24 constexpr auto as_address(std::string_view address_literal) -> std::string_view
  25 {
  26   // CHECK(is_address_literal(address_literal));
  27   return std::string_view(begin(address_literal) + lit_pfx_sz,
  28                           size(address_literal) - lit_extra_sz);
  29 }
  30
  31 } // namespace IP6
  32
  33 #endif // IP4_DOT_HPP