ceph/src/jaegertracing/opentelemetry-cpp/third_party/nlohmann-json/doc/mkdocs/docs/api/basic_json/is_object.md

   1 # <small>nlohmann::basic_json::</small>is_object
   2
   3 ```cpp
   4 constexpr bool is_object() const noexcept;
   5 ```
   6
   7 This function returns `#!cpp true` if and only if the JSON value is an object.
   8
   9 ## Return value
  10
  11 `#!cpp true` if type is an object, `#!cpp false` otherwise.
  12
  13 ## Exception safety
  14
  15 No-throw guarantee: this member function never throws exceptions.
  16
  17 ## Complexity
  18
  19 Constant.
  20
  21 ## Examples
  22
  23 ??? example
  24
  25     The following code exemplifies `is_object()` for all JSON types.
  26
  27     ```cpp
  28     --8<-- "examples/is_object.cpp"
  29     ```
  30
  31     Output:
  32
  33     ```json
  34     --8<-- "examples/is_object.output"
  35     ```
  36
  37 ## Version history
  38
  39 - Added in version 1.0.0.