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2.3.1: get_cbor_sized_bytes for the CBOR chunk getters (#5891)

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Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann committed 2026-10-23 10:30:30 +02:00
1 parent 643acf23e2
commit daf104b549
1 file changed
+25 -20
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include/nlohmann/detail/input/binary_reader.hpp
+25 -20
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@@ -1064,6 +1064,23 @@ class binary_reader
return last_byte_error(exception_id::invalid_string_or_size, concat("indefinite-length ", type_name, " is not allowed inside indefinite-length ", type_name, "; last byte: 0x", get_token_string()), context);
}
/*!
@brief read the length of a CBOR string or byte array and then its bytes
@tparam NumberType the type of the length field
@tparam ContainerType the destination container (string_t or binary_t)
@param[in] context further context information (for diagnostics)
@param[out] result container the bytes are appended to
@return whether reading completed
*/
template<typename NumberType, typename ContainerType>
bool get_cbor_sized_bytes(const char* context, ContainerType& result)
{
NumberType len{};
return get_number(len) && get_bytes(len, context, result);
}
/*!
@brief reads a definite-length CBOR string
@@ -1114,26 +1131,22 @@ class binary_reader
case 0x78: // UTF-8 string (one-byte uint8_t for n follows)
{
std::uint8_t len{};
return get_number(len) && get_string(len, result);
return get_cbor_sized_bytes<std::uint8_t>("string", result);
}
case 0x79: // UTF-8 string (two-byte uint16_t for n follow)
{
std::uint16_t len{};
return get_number(len) && get_string(len, result);
return get_cbor_sized_bytes<std::uint16_t>("string", result);
}
case 0x7A: // UTF-8 string (four-byte uint32_t for n follow)
{
std::uint32_t len{};
return get_number(len) && get_string(len, result);
return get_cbor_sized_bytes<std::uint32_t>("string", result);
}
case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow)
{
std::uint64_t len{};
return get_number(len) && get_string(len, result);
return get_cbor_sized_bytes<std::uint64_t>("string", result);
}
default:
@@ -1321,30 +1334,22 @@ class binary_reader
case 0x58: // Binary data (one-byte uint8_t for n follows)
{
std::uint8_t len{};
return get_number(len) &&
get_binary(len, result);
return get_cbor_sized_bytes<std::uint8_t>("binary", result);
}
case 0x59: // Binary data (two-byte uint16_t for n follow)
{
std::uint16_t len{};
return get_number(len) &&
get_binary(len, result);
return get_cbor_sized_bytes<std::uint16_t>("binary", result);
}
case 0x5A: // Binary data (four-byte uint32_t for n follow)
{
std::uint32_t len{};
return get_number(len) &&
get_binary(len, result);
return get_cbor_sized_bytes<std::uint32_t>("binary", result);
}
case 0x5B: // Binary data (eight-byte uint64_t for n follow)
{
std::uint64_t len{};
return get_number(len) &&
get_binary(len, result);
return get_cbor_sized_bytes<std::uint64_t>("binary", result);
}
default: