JSON for Modern C++ 3.7.3

accept
accept
accept
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
basic_json
basic_json
begin
begin
binary
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end
end
erase
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erase
error_handler_t
exception
find
find
flatten
from_bson
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from_ubjson
front
front
get
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is_array
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items
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json_pointer
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meta
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operator ValueType
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~basic_json
| ## ◆ insert() [1/6]
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. 1 #include <iostream> 2 #include <nlohmann/json.hpp> 3 4 using json = nlohmann::json; 5 6 int main() 7 { 8 // create two JSON objects 9 json j1 = {{"one", "eins"}, {"two", "zwei"}}; 10 json j2 = {{"eleven", "elf"}, {"seventeen", "siebzehn"}}; 11 12 // output objects 13 std::cout << j1 << '\n'; 14 std::cout << j2 << '\n'; 15 16 // insert range from j2 to j1 17 j1.insert(j2.begin(), j2.end()); 18 19 // output result of insert call 20 std::cout << j1 << '\n'; 21 } 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 -Isingle_include doc/examples/insert__range_object.cpp -o insert__range_object
Since version 3.0.0 Definition at line 21510 of file json.hpp.

nlohmann::json
basic_json<> json
default JSON class
Definition: json.hpp:2774