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nlohmann
2026-10-06 15:51:51 +00:00
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api/basic_json/to_msgpack.md
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@@ -54,6 +54,8 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
`"subtype 70000 is too large for the MessagePack ext type (max 255)"`
- Throws [type_error.316](../../home/exceptions.md#jsonexceptiontype_error316) if a string or object key in `j` is
not valid UTF-8 and `error_handler` is `strict`
- Throws [type_error.321](../../home/exceptions.md#jsonexceptiontype_error321) if `j` or a value nested in it is
discarded; example: `"cannot serialize discarded value to MessagePack"`
## Complexity
@@ -108,3 +110,5 @@ Linear in the size of the JSON value `j`.
- Fixed in version 3.13.0 to serialize `number_integer_t`/`number_unsigned_t` pairs of different width correctly;
before, integers could be serialized with the wrong value if `number_integer_t` was narrower than
`number_unsigned_t`.
- Throws `type_error.321` for a discarded value since version 3.13.0; previously, a discarded value nested in an
array or object was silently skipped, producing invalid MessagePack.