JSON for Modern C++ 2.0.10

allocator_type
array
array_t
at
at
at
at
at
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back
back
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
basic_json
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basic_json
begin
begin
boolean_t
cbegin
cend
clear
const_iterator
const_pointer
const_reference
const_reverse_iterator
count
crbegin
crend
diff
difference_type
dump
emplace
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end
end
erase
erase
erase
erase
find
find
flatten
from_cbor
from_msgpack
front
front
get
get
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get_ptr
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is_object
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is_string
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iterator
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max_size
number_float_t
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object
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operator value_t
operator ValueType
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rbegin
reference
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~basic_json
| ## § dump() 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>
string_t nlohmann::basic_json::dump | ( | const int | indent = `-1` | ) | const
| inline
  Serialization function for JSON values. The function tries to mimic Python's `json.dumps()` function, and currently supports its indent parameter. Parameters
  [in] | indent | If indent is nonnegative, then array elements and object members will be pretty-printed with that indent level. An indent level of `0` will only insert newlines. `-1` (the default) selects the most compact representation.
  Returns string containing the serialization of the JSON value Complexity Linear. Example The following example shows the effect of different indent parameters to the result of the serialization. 1 #include <json.hpp> 2 3 using json = nlohmann::json; 4 5 int main() 6 { 7 // create JSON values 8 json j_object = {{"one", 1}, {"two", 2}}; 9 json j_array = {1, 2, 4, 8, 16}; 10 11 // call dump() 12 std::cout << j_object.dump() << "\n\n"; 13 std::cout << j_object.dump(-1) << "\n\n"; 14 std::cout << j_object.dump(0) << "\n\n"; 15 std::cout << j_object.dump(4) << "\n\n"; 16 std::cout << j_array.dump() << "\n\n"; 17 std::cout << j_array.dump(-1) << "\n\n"; 18 std::cout << j_array.dump(0) << "\n\n"; 19 std::cout << j_array.dump(4) << "\n\n"; 20 } nlohmann::json basic_json<> json default JSON class Definition: json.hpp:12151 Output (play with this example online):
      {"one":1,"two":2}

      {"one":1,"two":2}

      {
      "one": 1,
      "two": 2
      }

      {
          "one": 1,
          "two": 2
      }

      [1,2,4,8,16]

      [1,2,4,8,16]

      [
      1,
      2,
      4,
      8,
      16
      ]

      [
          1,
          2,
          4,
          8,
          16
      ]
  The example code above can be translated with
      g++ -std=c++11 -Isrc doc/examples/dump.cpp -o dump
See also https://docs.python.org/2/library/json.html#json.dump Since version 1.0.0 Definition at line 2205 of file json.hpp.