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nlohmann
31 lines
627 B
Markdown
31 lines
627 B
Markdown
# JSON_HAS_RANGES
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```
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#define JSON_HAS_RANGES /* value */
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```
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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.
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## Default definition
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The default value is detected based on the preprocessor macro `__cpp_lib_ranges`.
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When the macro is not defined, the library will define it to its default value.
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## Examples
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Example
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The code below forces the library to enable support for ranges:
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```
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#define JSON_HAS_RANGES 1
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#include <nlohmann/json.hpp>
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...
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```
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## Version history
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- Added in version 3.11.0.
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