JSON for Modern C++ 3.8.0

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
binary
binary
binary
binary_t
boolean_t
cbegin
cbor_tag_handler_t
cend
clear
const_iterator
const_pointer
const_reference
const_reverse_iterator
contains
contains
count
crbegin
crend
detail::external_constructor
diff
difference_type
dump
emplace
emplace_back
empty
end
end
erase
erase
erase
erase
error_handler_t
exception
find
find
flatten
from_bson
from_bson
from_bson
from_bson
from_cbor
from_cbor
from_cbor
from_cbor
from_msgpack
from_msgpack
from_msgpack
from_msgpack
from_ubjson
from_ubjson
from_ubjson
from_ubjson
front
front
get
get
get
get
get
get
get_allocator
get_binary
get_binary
get_ptr
get_ptr
get_ref
get_ref
get_to
get_to
get_to
initializer_list_t
input_format_t
insert
insert
insert
insert
insert
insert
insert_iterator
invalid_iterator
is_array
is_binary
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
items
items
iterator
iterator_wrapper
iterator_wrapper
json_pointer
json_sax_t
json_serializer
max_size
merge_patch
meta
number_float_t
number_integer_t
number_unsigned_t
object
object_comparator_t
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[]
other_error
out_of_range
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
sax_parse
sax_parse
sax_parse
size
size_type
string_t
swap
swap
swap
swap
swap
swap
swap
to_bson
to_bson
to_bson
to_cbor
to_cbor
to_cbor
to_msgpack
to_msgpack
to_msgpack
to_ubjson
to_ubjson
to_ubjson
type
type_error
type_name
unflatten
update
update
value
value
value
value
value_t
value_type
~basic_json
| ## ◆ basic_json() [6/10]
nlohmann::basic_json::basic_json | ( | size_type | cnt,
|  | const basic_json & | val
| ) |  |
| inline
  Constructs a JSON array value by creating cnt copies of a passed value. In case cnt is `0`, an empty array is created. Parameters
  [in] | cnt | the number of JSON copies of val to create
  [in] | val | the JSON value to copy
  Postcondition `std::distance(begin(),end()) == cnt` holds. Complexity Linear in cnt. Exception safety Strong guarantee: if an exception is thrown, there are no changes to any JSON value. Example The following code shows examples for the basic_json(size_type, const basic_json&) constructor. 1 #include <iostream> 2 #include <nlohmann/json.hpp> 3 4 using json = nlohmann::json; 5 6 int main() 7 { 8 // create an array by creating copies of a JSON value 9 json value = "Hello"; 10 json array_0 = json(0, value); 11 json array_1 = json(1, value); 12 json array_5 = json(5, value); 13 14 // serialize the JSON arrays 15 std::cout << array_0 << '\n'; 16 std::cout << array_1 << '\n'; 17 std::cout << array_5 << '\n'; 18 } Output (play with this example online):
      []
      ["Hello"]
      ["Hello","Hello","Hello","Hello","Hello"]
  The example code above can be translated with
      g++ -std=c++11 -Isingle_include doc/examples/basic_json__size_type_basic_json.cpp -o basic_json__size_type_basic_json
Since version 1.0.0 Definition at line 18241 of file json.hpp.

nlohmann::basic_json::value
ValueType value(const typename object_t::key_type &key, const ValueType &default_value) const
access specified object element with default value
Definition: json.hpp:20189
nlohmann::json
basic_json<> json
default JSON class
Definition: json.hpp:2933