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api/basic_json/number_unsigned_t/index.html
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api/basic_json/number_unsigned_t/index.md
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@@ -20,15 +20,15 @@ To store unsigned integer numbers in C++, a type is defined by the template para
## Notes
#### Default type
### Default type
With the default values for `NumberUnsignedType` (`std::uint64_t`), the default value for `number_unsigned_t` is `std::uint64_t`.
#### Default behavior
### Default behavior
- The restrictions about leading zeros are not enforced in C++. Instead, leading zeros in integer literals lead to an interpretation as an octal number. Internally, the value will be stored as a decimal number. For instance, the C++ integer literal `010` will be serialized to `8`. During deserialization, leading zeros yield an error.
#### Limits
### Limits
[RFC 8259](https://tools.ietf.org/html/rfc8259) specifies:
@@ -42,7 +42,7 @@ When the default type is used, the maximal integer number that can be stored is
As this range is a subrange (when considered in conjunction with the `number_integer_t` type) of the exactly supported range [0, UINT64_MAX], this class's integer type is interoperable.
#### Storage
### Storage
Integer number values are stored directly inside a `basic_json` type.
@@ -71,6 +71,13 @@ Output:
true
```
## See also
- [number_integer_t](https://json.nlohmann.me/api/basic_json/number_integer_t/index.md) the type used to store JSON integer numbers
- [number_float_t](https://json.nlohmann.me/api/basic_json/number_float_t/index.md) the type used to store JSON floating-point numbers
- [is_number_unsigned](https://json.nlohmann.me/api/basic_json/is_number_unsigned/index.md) checks whether the JSON value is an unsigned integer number
- [Number Handling](https://json.nlohmann.me/features/types/number_handling/index.md) - the article on number handling
## Version history
- Added in version 2.0.0.