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930 B
930 B
nlohmann::basic_json::boolean_t
using boolean_t = BooleanType;
The type used to store JSON booleans.
RFC 8259 implicitly describes a boolean as a type which differentiates the two literals
#!json true and #!json false.
To store objects in C++, a type is defined by the template parameter BooleanType which chooses the type to use.
Notes
Default type
With the default values for BooleanType (#!cpp bool), the default value for boolean_t is #!cpp bool.
Storage
Boolean values are stored directly inside a basic_json type.
Examples
??? example
The following code shows that `boolean_t` is by default, a typedef to `#!cpp bool`.
```cpp
--8<-- "examples/boolean_t.cpp"
```
Output:
```json
--8<-- "examples/boolean_t.output"
```
Version history
- Added in version 1.0.0.