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features/macros/index.md
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@@ -194,6 +194,12 @@ This macro overrides `try` calls inside the library.
See [full documentation of `JSON_TRY_USER`](https://json.nlohmann.me/api/macros/json_throw_user/index.md).
## `JSON_UBJSON_VALUELESS_ELEMENTS_PER_BYTE`
Sets how many elements of optimized UBJSON arrays of `Z` (null), `T` (true), and `F` (false) a reader accepts for every byte of input it has read, on top of a base of 1,048,576 elements. These arrays have no payload, so a few bytes can announce a million values. The value must be a positive integer; the default is `4`, and a value of 131,072 or more switches the limit of the whole input off. The limit of 1,048,576 elements for a single array always applies. The macro is not part of the [ABI tag](https://json.nlohmann.me/features/namespace/index.md): use the same value in every translation unit.
See [full documentation of `JSON_UBJSON_VALUELESS_ELEMENTS_PER_BYTE`](https://json.nlohmann.me/api/macros/json_ubjson_valueless_elements_per_byte/index.md).
## `JSON_USE_IMPLICIT_CONVERSIONS`
When defined to `0`, implicit conversions are switched off. By default, implicit conversions are switched on.