.. _program_listing_file_src_rdf4cpp_BlankNode.hpp:

Program Listing for File BlankNode.hpp
======================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_rdf4cpp_BlankNode.hpp>` (``src/rdf4cpp/BlankNode.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #ifndef RDF4CPP_BLANKNODE_HPP
   #define RDF4CPP_BLANKNODE_HPP
   
   #include <ostream>
   #include <rdf4cpp/Node.hpp>
   #include <rdf4cpp/CowString.hpp>
   
   namespace rdf4cpp {
   
   struct BlankNode : Node {
       BlankNode() noexcept;
   
       explicit BlankNode(storage::identifier::NodeBackendHandle handle) noexcept;
   
       explicit BlankNode(std::string_view identifier, storage::DynNodeStoragePtr node_storage = storage::default_node_storage);
   
       [[nodiscard]] static BlankNode make_null() noexcept;
   
       [[nodiscard]] static BlankNode make(std::string_view identifier, storage::DynNodeStoragePtr node_storage = storage::default_node_storage);
   
       [[nodiscard]] static BlankNode make_unchecked(std::string_view identifier, storage::DynNodeStoragePtr node_storage = storage::default_node_storage);
   
       BlankNode to_node_storage(storage::DynNodeStoragePtr node_storage) const;
       [[nodiscard]] BlankNode try_get_in_node_storage(storage::DynNodeStoragePtr node_storage) const noexcept;
   
       [[nodiscard]] static BlankNode find(std::string_view identifier, storage::DynNodeStoragePtr node_storage = storage::default_node_storage) noexcept;
   
       static void validate(std::string_view identifier);
   
       [[nodiscard]] CowString identifier() const noexcept;
   
       [[nodiscard]] FetchOrSerializeResult fetch_or_serialize_identifier(std::string_view &out, writer::BufWriterParts writer) const noexcept;
   
       bool serialize(writer::BufWriterParts writer) const noexcept;
   
       [[nodiscard]] std::strong_ordering order(BlankNode const &other) const noexcept;
   
       [[nodiscard]] bool order_eq(BlankNode const &other) const noexcept;
       [[nodiscard]] bool order_ne(BlankNode const &other) const noexcept;
   
       [[nodiscard]] bool eq(BlankNode const &other) const noexcept;
       [[nodiscard]] bool ne(BlankNode const &other) const noexcept;
   
       [[nodiscard]] explicit operator std::string() const noexcept;
   
       friend std::ostream &operator<<(std::ostream &os, BlankNode const &node);
   
       bool is_literal() const noexcept = delete;
       bool is_variable() const noexcept = delete;
       bool is_blank_node() const noexcept = delete;
       bool is_iri() const noexcept = delete;
   
       friend struct Node;
   };
   
   inline namespace shorthands {
   
   BlankNode operator""_bnode(char const *str, size_t len);
   
   }  // namespace shorthands
   }  // namespace rdf4cpp
   
   template<>
   struct std::hash<rdf4cpp::BlankNode> {
       inline size_t operator()(rdf4cpp::BlankNode const &v) const noexcept {
           return std::hash<rdf4cpp::Node>()(v);
       }
   };
   
   template<>
   struct std::formatter<rdf4cpp::BlankNode> : std::formatter<rdf4cpp::Node> {
       auto format(rdf4cpp::BlankNode n, format_context &ctx) const -> decltype(ctx.out());
   };
   
   #endif  //RDF4CPP_BLANKNODE_HPP