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Extend memcpy fast path to sized sentinels (e.g. std::counted_iterator) (#5268)

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Niels Lohmann
2026-07-12 09:16:06 +02:00
committed by GitHub
parent b2b47c69b1
commit c197feff81
11 changed files with 81 additions and 21 deletions
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docs/mkdocs/docs/api/basic_json/accept.md
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@@ -49,7 +49,7 @@ Unlike the [`parse()`](parse.md) function, this function neither throws an excep
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance.
- a custom sentinel type for C++20 ranges
- `std::counted_iterator` with a different sentinel type
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
## Parameters
docs/mkdocs/docs/api/basic_json/from_bjdata.md
+4 -2
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@@ -36,8 +36,10 @@ The exact mapping and its limitations are described on a [dedicated page](../../
: a compatible iterator type
`SentinelType`
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance a
custom sentinel type for C++20 ranges
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance.
- a custom sentinel type for C++20 ranges
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
## Parameters
docs/mkdocs/docs/api/basic_json/from_bson.md
+4 -2
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@@ -36,8 +36,10 @@ The exact mapping and its limitations are described on a [dedicated page](../../
: a compatible iterator type
`SentinelType`
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance a
custom sentinel type for C++20 ranges
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance.
- a custom sentinel type for C++20 ranges
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
## Parameters
docs/mkdocs/docs/api/basic_json/from_cbor.md
+4 -2
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@@ -39,8 +39,10 @@ The exact mapping and its limitations are described on a [dedicated page](../../
: a compatible iterator type
`SentinelType`
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance a
custom sentinel type for C++20 ranges
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance.
- a custom sentinel type for C++20 ranges
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
## Parameters
docs/mkdocs/docs/api/basic_json/from_msgpack.md
+4 -2
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@@ -36,8 +36,10 @@ The exact mapping and its limitations are described on a [dedicated page](../../
: a compatible iterator type
`SentinelType`
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance a
custom sentinel type for C++20 ranges
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance.
- a custom sentinel type for C++20 ranges
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
## Parameters
docs/mkdocs/docs/api/basic_json/from_ubjson.md
+4 -2
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@@ -36,8 +36,10 @@ The exact mapping and its limitations are described on a [dedicated page](../../
: a compatible iterator type
`SentinelType`
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance a
custom sentinel type for C++20 ranges
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance.
- a custom sentinel type for C++20 ranges
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
## Parameters
docs/mkdocs/docs/api/basic_json/parse.md
+1 -1
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@@ -48,7 +48,7 @@ static basic_json parse(IteratorType first, SentinelType last,
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for instance.
- a custom sentinel type for C++20 ranges
- `std::counted_iterator` with a different sentinel type
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
## Parameters
docs/mkdocs/docs/api/basic_json/sax_parse.md
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@@ -48,7 +48,10 @@ The SAX event lister must follow the interface of [`json_sax`](../json_sax/index
with a size of 1, 2, or 4 bytes (interpreted respectively as UTF-8, UTF-16, and UTF-32)
`SentinelType`
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for overload (2)
: defaults to `IteratorType`; may be a different type comparable to `IteratorType` via `operator!=`, for overload (2), for instance.
- a custom sentinel type for C++20 ranges
- `std::default_sentinel_t`, when `IteratorType` is `std::counted_iterator`
`SAX`
: a class fulfilling the SAX event listener interface; see [`json_sax`](../json_sax/index.md)