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~basic_json
| 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 = int64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator> template<class InputIT , typename std::enable_if< std::is_same< InputIT, typename __basic_json::iterator >::value orstd::is_same< InputIT, typename __basic_json::const_iterator >::value, int >::type = 0>
nlohmann::basic_json::basic_json | ( | InputIT | first,
|  | InputIT | last
| ) |  |
| inline
  Constructs the JSON value with the contents of the range `[first, last)`. The semantics depends on the different types a JSON value can have: In case of primitive types (number, boolean, or string), first must be `begin()` and last must be `end()`. In this case, the value is copied. Otherwise, std::out_of_range is thrown. In case of structured types (array, object), the constructor behaves as similar versions for `std::vector`. In case of a null type, std::domain_error is thrown. Template Parameters
  InputIT | an input iterator type (iterator or const_iterator)
  Parameters
  [in] | first | begin of the range to copy from (included)
  [in] | last | end of the range to copy from (excluded)
  Exceptions
  std::domain_error | if iterators are not compatible; that is, do not belong to the same JSON value
  std::out_of_range | if iterators are for a primitive type (number, boolean, or string) where an out of range error can be detected easily
  std::bad_alloc | if allocation for object, array, or string fails
  std::domain_error | if called with a null value
  Complexity Linear in distance between first and last. Example The example below shows several ways to create JSON values by specifying a subrange with iterators. 1 #include <json.hpp> 2 3 using namespace nlohmann; 4 5 int main() 6 { 7 // create JSON values 8 json j_array = {"alpha", "bravo", "charly", "delta", "easy"}; 9 json j_number = 42; 10 json j_object = {{"one", "eins"}, {"two", "zwei"}}; 11 12 // create copies using iterators 13 json j_array_range(j_array.begin() + 1, j_array.end() - 2); 14 json j_number_range(j_number.begin(), j_number.end()); 15 json j_object_range(j_object.begin(), j_object.find("two")); 16 17 // serialize the values 18 std::cout << j_array_range << '\n'; 19 std::cout << j_number_range << '\n'; 20 std::cout << j_object_range << '\n'; 21 } nlohmann::basic_json a class to store JSON values Definition: json.hpp:121 nlohmann::basic_json::end iterator end() returns an iterator to one past the last element Definition: json.hpp:2857 nlohmann::basic_json::begin iterator begin() returns an iterator to the first element Definition: json.hpp:2797 nlohmann::basic_json::find iterator find(typename object_t::key_type key) find an element in a JSON object Definition: json.hpp:2719 nlohmann namespace for Niels Lohmann Definition: json.hpp:56 Output:
      ["bravo","charly"]
      42
      {"one":"eins"}
  The example code above can be translated with
      g++ -std=c++11 -Isrc doc/examples/basic_json__InputIt_InputIt.cpp -o basic_json__InputIt_InputIt
.