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class=md-ellipsis> Supported Macros </span> <span class="md-nav__icon md-icon"></span> </label> <a href=./ class="md-nav__link md-nav__link--active"> <span class=md-ellipsis> Supported Macros </span> </a> <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> <label class=md-nav__title for=__toc> <span class="md-nav__icon md-icon"></span> Table of contents </label> <ul class=md-nav__list data-md-component=toc data-md-scrollfix> <li class=md-nav__item> <a href=#json_assertx class=md-nav__link> JSON_ASSERT(x) </a> </li> <li class=md-nav__item> <a href=#json_catch_userexception class=md-nav__link> JSON_CATCH_USER(exception) </a> </li> <li class=md-nav__item> <a href=#json_diagnostics class=md-nav__link> JSON_DIAGNOSTICS </a> </li> <li class=md-nav__item> <a href=#json_has_cpp_11-json_has_cpp_14-json_has_cpp_17-json_has_cpp_20 class=md-nav__link> JSON_HAS_CPP_11, JSON_HAS_CPP_14, JSON_HAS_CPP_17, JSON_HAS_CPP_20 </a> </li> <li class=md-nav__item> <a 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class=md-nav__link> JSON_USE_IMPLICIT_CONVERSIONS </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_intrusivetype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_INTRUSIVE(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_intrusive_with_defaulttype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_intrusive_only_serializetype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_non_intrusivetype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_non_intrusive_with_defaulttype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(type, member...) </a> </li> <li class=md-nav__item> <a 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aria-labelledby=__nav_2_16_label aria-expanded=false> <label class=md-nav__title for=__nav_2_16> <span class="md-nav__icon md-icon"></span> Types </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../types/number_handling/ class=md-nav__link> <span class=md-ellipsis> Number Handling </span> </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_3> <div class="md-nav__link md-nav__container"> <a href=../../integration/ class="md-nav__link "> <span class=md-ellipsis> Integration </span> </a> <label class="md-nav__link " for=__nav_3 id=__nav_3_label tabindex> <span class="md-nav__icon md-icon"></span> </label> </div> <nav class=md-nav data-md-level=1 aria-labelledby=__nav_3_label aria-expanded=false> <label class=md-nav__title for=__nav_3> <span class="md-nav__icon md-icon"></span> Integration </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../integration/migration_guide/ class=md-nav__link> <span class=md-ellipsis> Migration Guide </span> </a> </li> <li class=md-nav__item> <a href=../../integration/cmake/ class=md-nav__link> <span class=md-ellipsis> CMake </span> </a> </li> <li class=md-nav__item> <a href=../../integration/package_managers/ class=md-nav__link> <span class=md-ellipsis> Package Managers </span> </a> </li> <li class=md-nav__item> <a href=../../integration/pkg-config/ class=md-nav__link> <span class=md-ellipsis> Pkg-config </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--section md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4> <label class=md-nav__link for=__nav_4 id=__nav_4_label tabindex> <span class=md-ellipsis> API Documentation </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=1 aria-labelledby=__nav_4_label aria-expanded=false> <label class=md-nav__title for=__nav_4> <span class="md-nav__icon md-icon"></span> API Documentation </label> <ul class=md-nav__list data-md-scrollfix> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_1> <div class="md-nav__link md-nav__container"> <a href=../../api/basic_json/ class="md-nav__link "> <span class=md-ellipsis> basic_json </span> </a> <label class="md-nav__link " for=__nav_4_1 id=__nav_4_1_label tabindex=0> <span class="md-nav__icon md-icon"></span> </label> </div> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_1_label aria-expanded=false> <label class=md-nav__title for=__nav_4_1> <span class="md-nav__icon md-icon"></span> basic_json </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../api/basic_json/basic_json/ class=md-nav__link> <span class=md-ellipsis> (Constructor) </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/~basic_json/ class=md-nav__link> <span class=md-ellipsis> (Destructor) </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/accept/ class=md-nav__link> <span class=md-ellipsis> accept </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/array/ class=md-nav__link> <span class=md-ellipsis> array </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/array_t/ class=md-nav__link> <span class=md-ellipsis> array_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/at/ class=md-nav__link> <span class=md-ellipsis> at </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/back/ class=md-nav__link> <span class=md-ellipsis> back </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/begin/ class=md-nav__link> <span class=md-ellipsis> begin </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/binary/ class=md-nav__link> <span class=md-ellipsis> binary </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/binary_t/ class=md-nav__link> <span class=md-ellipsis> binary_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/boolean_t/ class=md-nav__link> <span class=md-ellipsis> boolean_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/cbegin/ class=md-nav__link> <span class=md-ellipsis> cbegin </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/cbor_tag_handler_t/ class=md-nav__link> <span class=md-ellipsis> cbor_tag_handler_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/cend/ class=md-nav__link> <span class=md-ellipsis> cend </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/clear/ class=md-nav__link> <span class=md-ellipsis> clear </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/contains/ class=md-nav__link> <span class=md-ellipsis> contains </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/count/ class=md-nav__link> <span class=md-ellipsis> count </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/crbegin/ class=md-nav__link> <span class=md-ellipsis> crbegin </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/crend/ class=md-nav__link> <span class=md-ellipsis> crend </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/default_object_comparator_t/ class=md-nav__link> <span class=md-ellipsis> default_object_comparator_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/diff/ class=md-nav__link> <span class=md-ellipsis> diff </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/dump/ class=md-nav__link> <span class=md-ellipsis> dump </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/emplace/ class=md-nav__link> <span class=md-ellipsis> emplace </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/emplace_back/ class=md-nav__link> <span class=md-ellipsis> emplace_back </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/empty/ class=md-nav__link> <span class=md-ellipsis> empty </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/end/ class=md-nav__link> <span class=md-ellipsis> end </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/erase/ class=md-nav__link> <span class=md-ellipsis> erase </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/error_handler_t/ class=md-nav__link> <span class=md-ellipsis> error_handler_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/exception/ class=md-nav__link> <span class=md-ellipsis> exception </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/find/ class=md-nav__link> <span class=md-ellipsis> find </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/flatten/ class=md-nav__link> <span class=md-ellipsis> flatten </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/from_bjdata/ class=md-nav__link> <span class=md-ellipsis> from_bjdata </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/from_bson/ class=md-nav__link> <span class=md-ellipsis> from_bson </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/from_cbor/ class=md-nav__link> <span class=md-ellipsis> from_cbor </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/from_msgpack/ class=md-nav__link> <span class=md-ellipsis> from_msgpack </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/from_ubjson/ class=md-nav__link> <span class=md-ellipsis> from_ubjson </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/front/ class=md-nav__link> <span class=md-ellipsis> front </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/get/ class=md-nav__link> <span class=md-ellipsis> get </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/get_allocator/ class=md-nav__link> <span class=md-ellipsis> get_allocator </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/get_binary/ class=md-nav__link> <span class=md-ellipsis> get_binary </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/get_ptr/ class=md-nav__link> <span class=md-ellipsis> get_ptr </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/get_ref/ class=md-nav__link> <span class=md-ellipsis> get_ref </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/get_to/ class=md-nav__link> <span class=md-ellipsis> get_to </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/std_hash/ class=md-nav__link> <span class=md-ellipsis> std::hash<basic_json> </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/input_format_t/ class=md-nav__link> <span class=md-ellipsis> input_format_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/insert/ class=md-nav__link> <span class=md-ellipsis> insert </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/invalid_iterator/ class=md-nav__link> <span class=md-ellipsis> invalid_iterator </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_array/ class=md-nav__link> <span class=md-ellipsis> is_array </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_binary/ class=md-nav__link> <span class=md-ellipsis> is_binary </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_boolean/ class=md-nav__link> <span class=md-ellipsis> is_boolean </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_discarded/ class=md-nav__link> <span class=md-ellipsis> is_discarded </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_null/ class=md-nav__link> <span class=md-ellipsis> is_null </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_number/ class=md-nav__link> <span class=md-ellipsis> is_number </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_number_float/ class=md-nav__link> <span class=md-ellipsis> is_number_float </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_number_integer/ class=md-nav__link> <span class=md-ellipsis> is_number_integer </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_number_unsigned/ class=md-nav__link> <span class=md-ellipsis> is_number_unsigned </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_object/ class=md-nav__link> <span class=md-ellipsis> is_object </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_primitive/ class=md-nav__link> <span class=md-ellipsis> is_primitive </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_string/ class=md-nav__link> <span class=md-ellipsis> is_string </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/is_structured/ class=md-nav__link> <span class=md-ellipsis> is_structured </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/items/ class=md-nav__link> <span class=md-ellipsis> items </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/json_base_class_t/ class=md-nav__link> <span class=md-ellipsis> json_base_class_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/json_serializer/ class=md-nav__link> <span class=md-ellipsis> json_serializer </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/max_size/ class=md-nav__link> <span class=md-ellipsis> max_size </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/meta/ class=md-nav__link> <span class=md-ellipsis> meta </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/merge_patch/ class=md-nav__link> <span class=md-ellipsis> merge_patch </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/number_float_t/ class=md-nav__link> <span class=md-ellipsis> number_float_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/number_integer_t/ class=md-nav__link> <span class=md-ellipsis> number_integer_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/number_unsigned_t/ class=md-nav__link> <span class=md-ellipsis> number_unsigned_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/object/ class=md-nav__link> <span class=md-ellipsis> object </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/object_comparator_t/ class=md-nav__link> <span class=md-ellipsis> object_comparator_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/object_t/ class=md-nav__link> <span class=md-ellipsis> object_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_ValueType/ class=md-nav__link> <span class=md-ellipsis> operator ValueType </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_value_t/ class=md-nav__link> <span class=md-ellipsis> operator value_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator%5B%5D/ class=md-nav__link> <span class=md-ellipsis> operator[] </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator%3D/ class=md-nav__link> <span class=md-ellipsis> operator= </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator%2B%3D/ class=md-nav__link> <span class=md-ellipsis> operator+= </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_eq/ class=md-nav__link> <span class=md-ellipsis> operator== </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_ne/ class=md-nav__link> <span class=md-ellipsis> operator!= </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_lt/ class=md-nav__link> <span class=md-ellipsis> operator< </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_gt/ class=md-nav__link> <span class=md-ellipsis> operator> </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_le/ class=md-nav__link> <span class=md-ellipsis> operator<= </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_ge/ class=md-nav__link> <span class=md-ellipsis> operator>= </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/operator_spaceship/ class=md-nav__link> <span class=md-ellipsis> operator<=> </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/out_of_range/ class=md-nav__link> <span class=md-ellipsis> out_of_range </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/other_error/ class=md-nav__link> <span class=md-ellipsis> other_error </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/parse/ class=md-nav__link> <span class=md-ellipsis> parse </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/parse_error/ class=md-nav__link> <span class=md-ellipsis> parse_error </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/parse_event_t/ class=md-nav__link> <span class=md-ellipsis> parse_event_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/parser_callback_t/ class=md-nav__link> <span class=md-ellipsis> parser_callback_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/patch/ class=md-nav__link> <span class=md-ellipsis> patch </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/patch_inplace/ class=md-nav__link> <span class=md-ellipsis> patch_inplace </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/push_back/ class=md-nav__link> <span class=md-ellipsis> push_back </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/rbegin/ class=md-nav__link> <span class=md-ellipsis> rbegin </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/rend/ class=md-nav__link> <span class=md-ellipsis> rend </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/sax_parse/ class=md-nav__link> <span class=md-ellipsis> sax_parse </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/size/ class=md-nav__link> <span class=md-ellipsis> size </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/string_t/ class=md-nav__link> <span class=md-ellipsis> string_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/swap/ class=md-nav__link> <span class=md-ellipsis> swap </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/std_swap/ class=md-nav__link> <span class=md-ellipsis> std::swap<basic_json> </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/to_bjdata/ class=md-nav__link> <span class=md-ellipsis> to_bjdata </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/to_bson/ class=md-nav__link> <span class=md-ellipsis> to_bson </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/to_cbor/ class=md-nav__link> <span class=md-ellipsis> to_cbor </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/to_msgpack/ class=md-nav__link> <span class=md-ellipsis> to_msgpack </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/to_string/ class=md-nav__link> <span class=md-ellipsis> to_string </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/to_ubjson/ class=md-nav__link> <span class=md-ellipsis> to_ubjson </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/type/ class=md-nav__link> <span class=md-ellipsis> type </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/type_error/ class=md-nav__link> <span class=md-ellipsis> type_error </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/type_name/ class=md-nav__link> <span class=md-ellipsis> type_name </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/unflatten/ class=md-nav__link> <span class=md-ellipsis> unflatten </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/update/ class=md-nav__link> <span class=md-ellipsis> update </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/value/ class=md-nav__link> <span class=md-ellipsis> value </span> </a> </li> <li class=md-nav__item> <a href=../../api/basic_json/value_t/ class=md-nav__link> <span class=md-ellipsis> value_t </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_2> <div class="md-nav__link md-nav__container"> <a href=../../api/byte_container_with_subtype/ class="md-nav__link "> <span class=md-ellipsis> byte_container_with_subtype </span> </a> <label class="md-nav__link " for=__nav_4_2 id=__nav_4_2_label tabindex=0> <span class="md-nav__icon md-icon"></span> </label> </div> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_2_label aria-expanded=false> <label class=md-nav__title for=__nav_4_2> <span class="md-nav__icon md-icon"></span> byte_container_with_subtype </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../api/byte_container_with_subtype/byte_container_with_subtype/ class=md-nav__link> <span class=md-ellipsis> (constructor) </span> </a> </li> <li class=md-nav__item> <a href=../../api/byte_container_with_subtype/clear_subtype/ class=md-nav__link> <span class=md-ellipsis> clear_subtype </span> </a> </li> <li class=md-nav__item> <a href=../../api/byte_container_with_subtype/has_subtype/ class=md-nav__link> <span class=md-ellipsis> has_subtype </span> </a> </li> <li class=md-nav__item> <a href=../../api/byte_container_with_subtype/set_subtype/ class=md-nav__link> <span class=md-ellipsis> set_subtype </span> </a> </li> <li class=md-nav__item> <a href=../../api/byte_container_with_subtype/subtype/ class=md-nav__link> <span class=md-ellipsis> subtype </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_3> <div class="md-nav__link md-nav__container"> <a href=../../api/adl_serializer/ class="md-nav__link "> <span class=md-ellipsis> adl_serializer </span> </a> <label class="md-nav__link " for=__nav_4_3 id=__nav_4_3_label tabindex=0> <span class="md-nav__icon md-icon"></span> </label> </div> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_3_label aria-expanded=false> <label class=md-nav__title for=__nav_4_3> <span class="md-nav__icon md-icon"></span> adl_serializer </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../api/adl_serializer/from_json/ class=md-nav__link> <span class=md-ellipsis> from_json </span> </a> </li> <li class=md-nav__item> <a href=../../api/adl_serializer/to_json/ class=md-nav__link> <span class=md-ellipsis> to_json </span> </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../../api/json/ class=md-nav__link> <span class=md-ellipsis> json </span> </a> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_5> <div class="md-nav__link md-nav__container"> <a href=../../api/json_pointer/ class="md-nav__link "> <span class=md-ellipsis> json_pointer </span> </a> <label class="md-nav__link " for=__nav_4_5 id=__nav_4_5_label tabindex=0> <span class="md-nav__icon md-icon"></span> </label> </div> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_5_label aria-expanded=false> <label class=md-nav__title for=__nav_4_5> <span class="md-nav__icon md-icon"></span> json_pointer </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../api/json_pointer/json_pointer/ class=md-nav__link> <span class=md-ellipsis> (Constructor) </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/back/ class=md-nav__link> <span class=md-ellipsis> back </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/empty/ class=md-nav__link> <span class=md-ellipsis> empty </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/operator_string_t/ class=md-nav__link> <span class=md-ellipsis> operator string_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/operator_eq/ class=md-nav__link> <span class=md-ellipsis> operator== </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/operator_ne/ class=md-nav__link> <span class=md-ellipsis> operator!= </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/operator_slash/ class=md-nav__link> <span class=md-ellipsis> operator/ </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/operator_slasheq/ class=md-nav__link> <span class=md-ellipsis> operator/= </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/parent_pointer/ class=md-nav__link> <span class=md-ellipsis> parent_pointer </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/pop_back/ class=md-nav__link> <span class=md-ellipsis> pop_back </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/push_back/ class=md-nav__link> <span class=md-ellipsis> push_back </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/string_t/ class=md-nav__link> <span class=md-ellipsis> string_t </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_pointer/to_string/ class=md-nav__link> <span class=md-ellipsis> to_string </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_6> <div class="md-nav__link md-nav__container"> <a href=../../api/json_sax/ class="md-nav__link "> <span class=md-ellipsis> json_sax </span> </a> <label class="md-nav__link " for=__nav_4_6 id=__nav_4_6_label tabindex=0> <span class="md-nav__icon md-icon"></span> </label> </div> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_6_label aria-expanded=false> <label class=md-nav__title for=__nav_4_6> <span class="md-nav__icon md-icon"></span> json_sax </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../api/json_sax/binary/ class=md-nav__link> <span class=md-ellipsis> binary </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/boolean/ class=md-nav__link> <span class=md-ellipsis> boolean </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/end_array/ class=md-nav__link> <span class=md-ellipsis> end_array </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/end_object/ class=md-nav__link> <span class=md-ellipsis> end_object </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/key/ class=md-nav__link> <span class=md-ellipsis> key </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/null/ class=md-nav__link> <span class=md-ellipsis> null </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/number_float/ class=md-nav__link> <span class=md-ellipsis> number_float </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/number_integer/ class=md-nav__link> <span class=md-ellipsis> number_integer </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/number_unsigned/ class=md-nav__link> <span class=md-ellipsis> number_unsigned </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/parse_error/ class=md-nav__link> <span class=md-ellipsis> parse_error </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/start_array/ class=md-nav__link> <span class=md-ellipsis> start_array </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/start_object/ class=md-nav__link> <span class=md-ellipsis> start_object </span> </a> </li> <li class=md-nav__item> <a href=../../api/json_sax/string/ class=md-nav__link> <span class=md-ellipsis> string </span> </a> </li> </ul> </nav> </li> <li class=md-nav__item> <a href=../../api/operator_ltlt/ class=md-nav__link> <span class=md-ellipsis> operator<<(basic_json) </span> </a> </li> <li class=md-nav__item> <a href=../../api/operator_ltlt/ class=md-nav__link> <span class=md-ellipsis> operator<<(json_pointer) </span> </a> </li> <li class=md-nav__item> <a href=../../api/operator_gtgt/ class=md-nav__link> <span class=md-ellipsis> operator>>(basic_json) </span> </a> </li> <li class=md-nav__item> <a href=../../api/operator_literal_json/ class=md-nav__link> <span class=md-ellipsis> operator""_json </span> </a> </li> <li class=md-nav__item> <a href=../../api/operator_literal_json_pointer/ class=md-nav__link> <span class=md-ellipsis> operator""_json_pointer </span> </a> </li> <li class=md-nav__item> <a href=../../api/ordered_json/ class=md-nav__link> <span class=md-ellipsis> ordered_json </span> </a> </li> <li class=md-nav__item> <a href=../../api/ordered_map/ class=md-nav__link> <span class=md-ellipsis> ordered_map </span> </a> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_4_14> <div class="md-nav__link md-nav__container"> <a href=../../api/macros/ class="md-nav__link "> <span class=md-ellipsis> macros </span> </a> <label class="md-nav__link " for=__nav_4_14 id=__nav_4_14_label tabindex=0> <span class="md-nav__icon md-icon"></span> </label> </div> <nav class=md-nav data-md-level=2 aria-labelledby=__nav_4_14_label aria-expanded=false> <label class=md-nav__title for=__nav_4_14> <span class="md-nav__icon md-icon"></span> macros </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../../api/macros/json_assert/ class=md-nav__link> <span class=md-ellipsis> JSON_ASSERT </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_throw_user/ class=md-nav__link> <span class=md-ellipsis> JSON_CATCH_USER </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_diagnostics/ class=md-nav__link> <span class=md-ellipsis> JSON_DIAGNOSTICS </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_disable_enum_serialization/ class=md-nav__link> <span class=md-ellipsis> JSON_DISABLE_ENUM_SERIALIZATION </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_cpp_11/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_CPP_11 </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_cpp_11/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_CPP_14 </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_cpp_11/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_CPP_17 </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_cpp_11/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_CPP_20 </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_filesystem/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_EXPERIMENTAL_FILESYSTEM </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_filesystem/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_FILESYSTEM </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_ranges/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_RANGES </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_static_rtti/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_STATIC_RTTI </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_has_three_way_comparison/ class=md-nav__link> <span class=md-ellipsis> JSON_HAS_THREE_WAY_COMPARISON </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_noexception/ class=md-nav__link> <span class=md-ellipsis> JSON_NOEXCEPTION </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_no_io/ class=md-nav__link> <span class=md-ellipsis> JSON_NO_IO </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_skip_library_version_check/ class=md-nav__link> <span class=md-ellipsis> JSON_SKIP_LIBRARY_VERSION_CHECK </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_skip_unsupported_compiler_check/ class=md-nav__link> <span class=md-ellipsis> JSON_SKIP_UNSUPPORTED_COMPILER_CHECK </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_throw_user/ class=md-nav__link> <span class=md-ellipsis> JSON_THROW_USER </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_throw_user/ class=md-nav__link> <span class=md-ellipsis> JSON_TRY_USER </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_use_global_udls/ class=md-nav__link> <span class=md-ellipsis> JSON_USE_GLOBAL_UDLS </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_use_implicit_conversions/ class=md-nav__link> <span class=md-ellipsis> JSON_USE_IMPLICIT_CONVERSIONS </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/json_use_legacy_discarded_value_comparison/ class=md-nav__link> <span class=md-ellipsis> JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_define_type_intrusive/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_DEFINE_TYPE_INTRUSIVE </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_define_type_intrusive/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_define_type_non_intrusive/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_define_type_non_intrusive/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_namespace/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_NAMESPACE </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_namespace_begin/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_NAMESPACE_BEGIN </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_namespace_begin/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_NAMESPACE_END </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_namespace_no_version/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_NAMESPACE_NO_VERSION </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_serialize_enum/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_SERIALIZE_ENUM </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_version_major/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_VERSION_MAJOR </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_version_major/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_VERSION_MINOR </span> </a> </li> <li class=md-nav__item> <a href=../../api/macros/nlohmann_json_version_major/ class=md-nav__link> <span class=md-ellipsis> NLOHMANN_JSON_VERSION_PATCH </span> </a> </li> </ul> </nav> </li> </ul> </nav> </li> </ul> </nav> </div> </div> </div> <div class="md-sidebar md-sidebar--secondary" data-md-component=sidebar data-md-type=toc> <div class=md-sidebar__scrollwrap> <div class=md-sidebar__inner> <nav class="md-nav md-nav--secondary" aria-label="Table of contents"> <label class=md-nav__title for=__toc> <span class="md-nav__icon md-icon"></span> Table of contents </label> <ul class=md-nav__list data-md-component=toc data-md-scrollfix> <li class=md-nav__item> <a href=#json_assertx class=md-nav__link> JSON_ASSERT(x) </a> </li> <li class=md-nav__item> <a href=#json_catch_userexception class=md-nav__link> JSON_CATCH_USER(exception) </a> </li> <li class=md-nav__item> <a href=#json_diagnostics class=md-nav__link> JSON_DIAGNOSTICS </a> </li> <li class=md-nav__item> <a href=#json_has_cpp_11-json_has_cpp_14-json_has_cpp_17-json_has_cpp_20 class=md-nav__link> JSON_HAS_CPP_11, JSON_HAS_CPP_14, JSON_HAS_CPP_17, JSON_HAS_CPP_20 </a> </li> <li class=md-nav__item> <a href=#json_has_filesystem-json_has_experimental_filesystem class=md-nav__link> JSON_HAS_FILESYSTEM, JSON_HAS_EXPERIMENTAL_FILESYSTEM </a> </li> <li class=md-nav__item> <a href=#json_noexception class=md-nav__link> JSON_NOEXCEPTION </a> </li> <li class=md-nav__item> <a href=#json_disable_enum_serialization class=md-nav__link> JSON_DISABLE_ENUM_SERIALIZATION </a> </li> <li class=md-nav__item> <a href=#json_no_io class=md-nav__link> JSON_NO_IO </a> </li> <li class=md-nav__item> <a href=#json_skip_library_version_check class=md-nav__link> JSON_SKIP_LIBRARY_VERSION_CHECK </a> </li> <li class=md-nav__item> <a href=#json_skip_unsupported_compiler_check class=md-nav__link> JSON_SKIP_UNSUPPORTED_COMPILER_CHECK </a> </li> <li class=md-nav__item> <a href=#json_throw_userexception class=md-nav__link> JSON_THROW_USER(exception) </a> </li> <li class=md-nav__item> <a href=#json_try_user class=md-nav__link> JSON_TRY_USER </a> </li> <li class=md-nav__item> <a href=#json_use_implicit_conversions class=md-nav__link> JSON_USE_IMPLICIT_CONVERSIONS </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_intrusivetype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_INTRUSIVE(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_intrusive_with_defaulttype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_intrusive_only_serializetype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_non_intrusivetype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_non_intrusive_with_defaulttype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_define_type_non_intrusive_only_serializetype-member class=md-nav__link> NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE(type, member...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_json_serialize_enumtype class=md-nav__link> NLOHMANN_JSON_SERIALIZE_ENUM(type, ...) </a> </li> <li class=md-nav__item> <a href=#nlohmann_json_version_major-nlohmann_json_version_minor-nlohmann_json_version_patch class=md-nav__link> NLOHMANN_JSON_VERSION_MAJOR, NLOHMANN_JSON_VERSION_MINOR, NLOHMANN_JSON_VERSION_PATCH </a> </li> </ul> </nav> </div> </div> </div> <div class=md-content data-md-component=content> <article class="md-content__inner md-typeset"> <h1 id=supported-macros>Supported Macros<a class=headerlink href=#supported-macros title="Permanent link">¶</a></h1> <p>Some aspects of the library can be configured by defining preprocessor macros before including the <code>json.hpp</code> header. See also the <a href=../../api/macros/ >API documentation for macros</a> for examples and more information.</p> <h2 id=json_assertx><code>JSON_ASSERT(x)</code><a class=headerlink href=#json_assertx title="Permanent link">¶</a></h2> <p>This macro controls which code is executed for <a href=../assertions/ >runtime assertions</a> of the library.</p> <p>See <a href=../../api/macros/json_assert/ >full documentation of <code>JSON_ASSERT(x)</code></a>.</p> <h2 id=json_catch_userexception><code>JSON_CATCH_USER(exception)</code><a class=headerlink href=#json_catch_userexception title="Permanent link">¶</a></h2> <p>This macro overrides <a href=https://en.cppreference.com/w/cpp/language/try_catch><code class=highlight><span class=k>catch</span></code></a> calls inside the library.</p> <p>See <a href=../../api/macros/json_throw_user/ >full documentation of <code>JSON_CATCH_USER(exception)</code></a>.</p> <h2 id=json_diagnostics><code>JSON_DIAGNOSTICS</code><a class=headerlink href=#json_diagnostics title="Permanent link">¶</a></h2> <p>This macro enables extended diagnostics for exception messages. Possible values are <code>1</code> to enable or <code>0</code> to disable (default).</p> <p>When enabled, exception messages contain a <a href=../json_pointer/ >JSON Pointer</a> to the JSON value that triggered the exception, see <a href=../../home/exceptions/#extended-diagnostic-messages>Extended diagnostic messages</a> for an example. Note that enabling this macro increases the size of every JSON value by one pointer and adds some runtime overhead.</p> <p>The diagnostics messages can also be controlled with the CMake option <code>JSON_Diagnostics</code> (<code>OFF</code> by default) which sets <code>JSON_DIAGNOSTICS</code> accordingly.</p> <p>See <a href=../../api/macros/json_diagnostics/ >full documentation of <code>JSON_DIAGNOSTICS</code></a>.</p> <h2 id=json_has_cpp_11-json_has_cpp_14-json_has_cpp_17-json_has_cpp_20><code>JSON_HAS_CPP_11</code>, <code>JSON_HAS_CPP_14</code>, <code>JSON_HAS_CPP_17</code>, <code>JSON_HAS_CPP_20</code><a class=headerlink href=#json_has_cpp_11-json_has_cpp_14-json_has_cpp_17-json_has_cpp_20 title="Permanent link">¶</a></h2> <p>The library targets C++11, but also supports some features introduced in later C++ versions (e.g., <code>std::string_view</code> support for C++17). For these new features, the library implements some preprocessor checks to determine the C++ standard. By defining any of these symbols, the internal check is overridden and the provided C++ version is unconditionally assumed. This can be helpful for compilers that only implement parts of the standard and would be detected incorrectly.</p> <p>See <a href=../../api/macros/json_has_cpp_11/ >full documentation of <code>JSON_HAS_CPP_11</code>, <code>JSON_HAS_CPP_14</code>, <code>JSON_HAS_CPP_17</code>, and <code>JSON_HAS_CPP_20</code></a>.</p> <h2 id=json_has_filesystem-json_has_experimental_filesystem><code>JSON_HAS_FILESYSTEM</code>, <code>JSON_HAS_EXPERIMENTAL_FILESYSTEM</code><a class=headerlink href=#json_has_filesystem-json_has_experimental_filesystem title="Permanent link">¶</a></h2> <p>When compiling with C++17, the library provides conversions from and to <code>std::filesystem::path</code>. As compiler support for filesystem is limited, the library tries to detect whether <code><filesystem></code>/<code>std::filesystem</code> (<code>JSON_HAS_FILESYSTEM</code>) or <code><experimental/filesystem></code>/<code>std::experimental::filesystem</code> (<code>JSON_HAS_EXPERIMENTAL_FILESYSTEM</code>) should be used. To override the built-in check, define <code>JSON_HAS_FILESYSTEM</code> or <code>JSON_HAS_EXPERIMENTAL_FILESYSTEM</code> to <code>1</code>.</p> <p>See <a href=../../api/macros/json_has_filesystem/ >full documentation of <code>JSON_HAS_FILESYSTEM</code> and <code>JSON_HAS_EXPERIMENTAL_FILESYSTEM</code></a>.</p> <h2 id=json_noexception><code>JSON_NOEXCEPTION</code><a class=headerlink href=#json_noexception title="Permanent link">¶</a></h2> <p>Exceptions can be switched off by defining the symbol <code>JSON_NOEXCEPTION</code>.</p> <p>See <a href=../../api/macros/json_noexception/ >full documentation of <code>JSON_NOEXCEPTION</code></a>.</p> <h2 id=json_disable_enum_serialization><code>JSON_DISABLE_ENUM_SERIALIZATION</code><a class=headerlink href=#json_disable_enum_serialization title="Permanent link">¶</a></h2> <p>When defined, default parse and serialize functions for enums are excluded and have to be provided by the user, for example, using <a href=../../api/macros/nlohmann_json_serialize_enum/ ><code>NLOHMANN_JSON_SERIALIZE_ENUM</code></a>.</p> <p>See <a href=../../api/macros/json_disable_enum_serialization/ >full documentation of <code>JSON_DISABLE_ENUM_SERIALIZATION</code></a>.</p> <h2 id=json_no_io><code>JSON_NO_IO</code><a class=headerlink href=#json_no_io title="Permanent link">¶</a></h2> <p>When defined, headers <code><cstdio></code>, <code><ios></code>, <code><iosfwd></code>, <code><istream></code>, and <code><ostream></code> are not included and parse functions relying on these headers are excluded. This is relevant for environment where these I/O functions are disallowed for security reasons (e.g., Intel Software Guard Extensions (SGX)).</p> <p>See <a href=../../api/macros/json_no_io/ >full documentation of <code>JSON_NO_IO</code></a>.</p> <h2 id=json_skip_library_version_check><code>JSON_SKIP_LIBRARY_VERSION_CHECK</code><a class=headerlink href=#json_skip_library_version_check title="Permanent link">¶</a></h2> <p>When defined, the library will not create a compiler warning when a different version of the library was already included.</p> <p>See <a href=../../api/macros/json_skip_library_version_check/ >full documentation of <code>JSON_SKIP_LIBRARY_VERSION_CHECK</code></a>.</p> <h2 id=json_skip_unsupported_compiler_check><code>JSON_SKIP_UNSUPPORTED_COMPILER_CHECK</code><a class=headerlink href=#json_skip_unsupported_compiler_check title="Permanent link">¶</a></h2> <p>When defined, the library will not create a compile error when a known unsupported compiler is detected. This allows to use the library with compilers that do not fully support C++11 and may only work if unsupported features are not used.</p> <p>See <a href=../../api/macros/json_skip_unsupported_compiler_check/ >full documentation of <code>JSON_SKIP_UNSUPPORTED_COMPILER_CHECK</code></a>.</p> <h2 id=json_throw_userexception><code>JSON_THROW_USER(exception)</code><a class=headerlink href=#json_throw_userexception title="Permanent link">¶</a></h2> <p>This macro overrides <code class=highlight><span class=k>throw</span></code> calls inside the library. The argument is the exception to be thrown.</p> <p>See <a href=../../api/macros/json_throw_user/ >full documentation of <code>JSON_THROW_USER(exception)</code></a>.</p> <h2 id=json_try_user><code>JSON_TRY_USER</code><a class=headerlink href=#json_try_user title="Permanent link">¶</a></h2> <p>This macro overrides <code class=highlight><span class=k>try</span></code> calls inside the library.</p> <p>See <a href=../../api/macros/json_throw_user/ >full documentation of <code>JSON_TRY_USER</code></a>.</p> <h2 id=json_use_implicit_conversions><code>JSON_USE_IMPLICIT_CONVERSIONS</code><a class=headerlink href=#json_use_implicit_conversions title="Permanent link">¶</a></h2> <p>When defined to <code>0</code>, implicit conversions are switched off. By default, implicit conversions are switched on.</p> <p>See <a href=../../api/macros/json_use_implicit_conversions/ >full documentation of <code>JSON_USE_IMPLICIT_CONVERSIONS</code></a>.</p> <h2 id=nlohmann_define_type_intrusivetype-member><code>NLOHMANN_DEFINE_TYPE_INTRUSIVE(type, member...)</code><a class=headerlink href=#nlohmann_define_type_intrusivetype-member title="Permanent link">¶</a></h2> <p>This macro can be used to simplify the serialization/deserialization of types if (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object.</p> <p>The macro is to be defined inside the class/struct to create code for. Unlike <a href=#nlohmann_define_type_non_intrusivetype-member><code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE</code></a>, it can access private members. The first parameter is the name of the class/struct, and all remaining parameters name the members.</p> <p>See <a href=../../api/macros/nlohmann_define_type_intrusive/ >full documentation of <code>NLOHMANN_DEFINE_TYPE_INTRUSIVE</code></a>.</p> <h2 id=nlohmann_define_type_intrusive_with_defaulttype-member><code>NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(type, member...)</code><a class=headerlink href=#nlohmann_define_type_intrusive_with_defaulttype-member title="Permanent link">¶</a></h2> <p>This macro is similar to <code>NLOHMANN_DEFINE_TYPE_INTRUSIVE</code>. It will not throw an exception in <code>from_json()</code> due to a missing value in the JSON object, but can throw due to a mismatched type. The <code>from_json()</code> function default constructs an object and uses its values as the defaults when calling the <a href=../../api/basic_json/value/ ><code>value</code></a> function.</p> <p>See <a href=../../api/macros/nlohmann_define_type_intrusive/ >full documentation of <code>NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT</code></a>.</p> <h2 id=nlohmann_define_type_intrusive_only_serializetype-member><code>NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE(type, member...)</code><a class=headerlink href=#nlohmann_define_type_intrusive_only_serializetype-member title="Permanent link">¶</a></h2> <p>This macro is similar to <code>NLOHMANN_DEFINE_TYPE_INTRUSIVE</code> except that it defines only the serialization code. This is useful when the user type does not have a default constructor and only the serialization is required.</p> <p>See <a href=../../api/macros/nlohmann_define_type_intrusive/ >full documentation of <code>NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE</code></a>.</p> <h2 id=nlohmann_define_type_non_intrusivetype-member><code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(type, member...)</code><a class=headerlink href=#nlohmann_define_type_non_intrusivetype-member title="Permanent link">¶</a></h2> <p>This macro can be used to simplify the serialization/deserialization of types if (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object.</p> <p>The macro is to be defined inside the namespace of the class/struct to create code for. Private members cannot be accessed. Use <a href=#nlohmann_define_type_intrusivetype-member><code>NLOHMANN_DEFINE_TYPE_INTRUSIVE</code></a> in these scenarios. The first parameter is the name of the class/struct, and all remaining parameters name the members.</p> <p>See <a href=../../api/macros/nlohmann_define_type_non_intrusive/ >full documentation of <code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE</code></a>.</p> <h2 id=nlohmann_define_type_non_intrusive_with_defaulttype-member><code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(type, member...)</code><a class=headerlink href=#nlohmann_define_type_non_intrusive_with_defaulttype-member title="Permanent link">¶</a></h2> <p>This macro is similar to <code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE</code>. It will not throw an exception in <code>from_json()</code> due to a missing value in the JSON object, but can throw due to a mismatched type. The <code>from_json()</code> function default constructs an object and uses its values as the defaults when calling the <a href=../../api/basic_json/value/ ><code>value</code></a> function.</p> <p>See <a href=../../api/macros/nlohmann_define_type_non_intrusive/ >full documentation of <code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT</code></a>.</p> <h2 id=nlohmann_define_type_non_intrusive_only_serializetype-member><code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE(type, member...)</code><a class=headerlink href=#nlohmann_define_type_non_intrusive_only_serializetype-member title="Permanent link">¶</a></h2> <p>This macro is similar to <code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE</code> except that it defines only the serialization code. This is useful when the user type does not have a default constructor and only the serialization is required.</p> <p>See <a href=../../api/macros/nlohmann_define_type_non_intrusive/ >full documentation of <code>NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE</code></a>.</p> <h2 id=nlohmann_json_serialize_enumtype><code>NLOHMANN_JSON_SERIALIZE_ENUM(type, ...)</code><a class=headerlink href=#nlohmann_json_serialize_enumtype title="Permanent link">¶</a></h2> <p>This macro simplifies the serialization/deserialization of enum types. See <a href=../enum_conversion/ >Specializing enum conversion</a> for more information.</p> <p>See <a href=../../api/macros/nlohmann_json_serialize_enum/ >full documentation of <code>NLOHMANN_JSON_SERIALIZE_ENUM</code></a>.</p> <h2 id=nlohmann_json_version_major-nlohmann_json_version_minor-nlohmann_json_version_patch><code>NLOHMANN_JSON_VERSION_MAJOR</code>, <code>NLOHMANN_JSON_VERSION_MINOR</code>, <code>NLOHMANN_JSON_VERSION_PATCH</code><a class=headerlink href=#nlohmann_json_version_major-nlohmann_json_version_minor-nlohmann_json_version_patch title="Permanent link">¶</a></h2> <p>These macros are defined by the library and contain the version numbers according to <a href=https://semver.org/spec/v2.0.0.html>Semantic Versioning 2.0.0</a>.</p> <p>See <a href=../../api/macros/nlohmann_json_version_major/ >full documentation of <code>NLOHMANN_JSON_VERSION_MAJOR</code>, <code>NLOHMANN_JSON_VERSION_MINOR</code>, and <code>NLOHMANN_JSON_VERSION_PATCH</code></a>.</p> <hr> <div class=md-source-file> <small> Last update: <span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date">November 26, 2023</span> </small> </div> </article> </div> <script>var tabs=__md_get("__tabs");if(Array.isArray(tabs))e:for(var set of document.querySelectorAll(".tabbed-set")){var tab,labels=set.querySelector(".tabbed-labels");for(tab of tabs)for(var label of labels.getElementsByTagName("label"))if(label.innerText.trim()===tab){var input=document.getElementById(label.htmlFor);input.checked=!0;continue e}}</script> </div> <button type=button class="md-top md-icon" data-md-component=top hidden> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12Z"/></svg> Back to top </button> </main> <footer class=md-footer> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class=md-copyright> <div class=md-copyright__highlight> Copyright © 2013 - 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