allocator_type array array_t at at at at at at back back basic_json basic_json basic_json basic_json basic_json basic_json basic_json basic_json begin begin boolean_t cbegin cend clear const_iterator const_pointer const_reference const_reverse_iterator count crbegin crend detail::external_constructor diff difference_type dump emplace emplace_back empty end end erase erase erase erase exception find find flatten from_cbor from_msgpack front front get get get get get get_allocator get_ptr get_ptr get_ref get_ref insert insert insert insert insert insert invalid_iterator is_array is_boolean is_discarded is_null is_number is_number_float is_number_integer is_number_unsigned is_object is_primitive is_string is_structured iterator iterator_wrapper iterator_wrapper json_serializer max_size meta number_float_t number_integer_t number_unsigned_t object object_t operator value_t operator ValueType operator!= operator!= operator!= operator+= operator+= operator+= operator+= operator< operator< operator< operator<< operator<< operator<= operator<= operator<= operator= operator== operator== operator== operator> operator> operator> operator>= operator>= operator>= operator>> operator>> operator[] operator[] operator[] operator[] operator[] operator[] operator[] operator[] operator[] operator[] other_error out_of_range parse parse parse parse parse parse parse_error parse_event_t parser_callback_t patch pointer push_back push_back push_back push_back rbegin rbegin reference rend rend reverse_iterator size size_type string_t swap swap swap swap to_cbor to_msgpack type type_error type_name unflatten value value value value value_t value_type ~basic_json

insert() [6/6] template<template< typename U, typename V, typename... Args > class ObjectType = std::map, template< typename U, typename... Args > class ArrayType = std::vector, class StringType = std::string, class BooleanType = bool, class NumberIntegerType = std::int64_t, class NumberUnsignedType = std::uint64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator, template< typename T, typename SFINAE=void > class JSONSerializer = adl_serializer> void nlohmann::basic_json::insert ( const_iterator  first, const_iterator  last  ) inline Inserts elements from range [first, last). Parameters [in] first begin of the range of elements to insert [in] last end of the range of elements to insert Exceptions type_error.309 if called on JSON values other than objects; example: "cannot use insert() with string" invalid_iterator.202 if iterator first or last does does not point to an object; example: "iterators first and last must point to objects" invalid_iterator.210 if first and last do not belong to the same JSON value; example: "iterators do not fit" Complexity Logarithmic: O(N*log(size() + N)), where N is the number of elements to insert. Example The example shows how insert() is used. #include "json.hpp" using json = nlohmann::json; int main() { // create two JSON objects json j1 = {{"one", "eins"}, {"two", "zwei"}}; json j2 = {{"eleven", "elf"}, {"seventeen", "siebzehn"}}; // output objects std::cout << j1 << '\n'; std::cout << j2 << '\n'; // insert range from j2 to j1 j1.insert(j2.begin(), j2.end()); // output result of insert call std::cout << j1 << '\n'; } Output (play with this example online): {"one":"eins","two":"zwei"} {"eleven":"elf","seventeen":"siebzehn"} {"eleven":"elf","one":"eins","seventeen":"siebzehn","two":"zwei"} The example code above can be translated with g++ -std=c++11 -Isrc doc/examples/insert__range_object.cpp -o insert__range_object Since version 3.0.0 Definition at line 6015 of file json.hpp.