1# basic_json::boolean_t 2 3```cpp 4using boolean_t = BooleanType; 5``` 6 7The type used to store JSON booleans. 8 9[RFC 8259](https://tools.ietf.org/html/rfc8259) implicitly describes a boolean as a type which differentiates the two literals 10`#!json true` and `#!json false`. 11 12To store objects in C++, a type is defined by the template parameter `BooleanType` which chooses the type to use. 13 14## Notes 15 16#### Default type 17 18With the default values for `BooleanType` (`#!cpp bool`), the default value for `boolean_t` is `#!cpp bool`. 19 20#### Storage 21 22Boolean values are stored directly inside a `basic_json` type. 23 24## Version history 25 26- Added in version 1.0.0. 27