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667 B
JSON_HAS_RANGES
#define JSON_HAS_RANGES /* value */
This macro indicates whether the standard library has any support for ranges. Implies support for concepts.
Possible values are 1 when supported or 0 when unsupported.
Default definition
The default value is detected based on the preprocessor macro #!cpp __cpp_lib_ranges.
When the macro is not defined, the library will define it to its default value.
Examples
??? example
The code below forces the library to enable support for ranges:
```cpp
#define JSON_HAS_RANGES 1
#include <nlohmann/json.hpp>
...
```
Version history
- Added in version 3.11.0.