Size of binary json representations

[davidglavas]

For the following example, is it correct to say that v_cbor.size() is the size (number of bytes) of the CBOR representation for the JSON document {"compact": true, "schema": 0}? I guess it's the same for the other binary formats in this library?

// create a JSON value
nlohmann::json j = R"({"compact": true, "schema": 0})"_json;

// serialize to CBOR
std::vector<std::uint8_t> v_cbor = nlohmann::json::to_cbor(j);

// 0xA2, 0x67, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0xF5, 0x66, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00

// roundtrip
nlohmann::json j_from_cbor = nlohmann::json::from_cbor(v_cbor);

std::cout << "CBOR:" << std::endl;
std::cout << j_from_cbor << std::endl;                                                     // print plaintext
std::cout << uint8_vector_to_hex_string(v_cbor) << std::endl;                               // print binary representation
std::cout << "Size (bytes) of binary representation: " << v_cbor.size() << std::endl;
std::cout << std::endl << std::endl;

[nlohmann]

Yes - the result of the binary formats is a vector of bytes, so size() is the right way to query the size.

[stale]

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