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Add deprecated from_bon8/from_bjdata(ptr, len) overloads (#5688)

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from_bon8(ptr, len) and from_bjdata(ptr, len) had no overload for a
pointer and a length, unlike from_cbor/from_msgpack/from_ubjson/
from_bson. The call instead bound to from_*(InputType&&, bool strict),
which read ptr as a NUL-terminated C string via strlen and silently
converted len to the strict flag. Data containing a 0x00 byte was cut
off there; data without one was read past the end of the buffer.

Add a deprecated (ptr, len, strict, allow_exceptions) overload for
each function that forwards to (ptr, ptr + len, ...), matching the
existing deprecated overloads of the other four binary readers. Since
neither function ever had this overload, the deprecation is declared
as of version 3.13.0, the next unreleased version, rather than the
version each function was originally added in.

Fixes #5648.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-10-04 22:11:34 +02:00
committed by GitHub
parent 4f69be80d6
commit c5a7a4b46d
6 changed files with 114 additions and 0 deletions
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include/nlohmann/json.hpp
+20
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@@ -5956,6 +5956,16 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return from_binary_impl(detail::input_adapter(std::move(first), std::move(last)), input_format_t::bjdata, strict, allow_exceptions, error_handler);
}
template<typename T>
JSON_HEDLEY_WARN_UNUSED_RESULT
JSON_HEDLEY_DEPRECATED_FOR(3.13.0, from_bjdata(ptr, ptr + len))
static basic_json from_bjdata(const T* ptr, std::size_t len,
const bool strict = true,
const bool allow_exceptions = true)
{
return from_bjdata(ptr, ptr + len, strict, allow_exceptions);
}
/// @brief create a JSON value from an input in BON8 format
/// @sa https://json.nlohmann.me/api/basic_json/from_bon8/
template<typename InputType>
@@ -5979,6 +5989,16 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return from_binary_impl(detail::input_adapter(std::move(first), std::move(last)), input_format_t::bon8, strict, allow_exceptions);
}
template<typename T>
JSON_HEDLEY_WARN_UNUSED_RESULT
JSON_HEDLEY_DEPRECATED_FOR(3.13.0, from_bon8(ptr, ptr + len))
static basic_json from_bon8(const T* ptr, std::size_t len,
const bool strict = true,
const bool allow_exceptions = true)
{
return from_bon8(ptr, ptr + len, strict, allow_exceptions);
}
/// @brief create a JSON value from an input in BSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_bson/
template<typename InputType>