All Questions
9 questions
1
vote
0
answers
156
views
libcbor and nested structure
I have a JSON nested structure like this:
{"var1":"val1","var2":{"var1a":"val1a"}}
I have generated the cbor buffer using this function from the ...
- 47
-1
votes
1
answer
686
views
C++ jsoncons : cbor to json
I would like to convert cbor into json using the C++ jsoncons library (https://github.com/danielaparker/jsoncons/blob/master/doc/ref/cbor/cbor.md).
But when I print the result to console some entries ...
- 23
0
votes
1
answer
899
views
nlohmann::detail::parse_error: syntax error while parsing CBOR string: expected length specification (0x60-0x7B) or indefinite string type (0x7F)
Trying to use nlohmann/json to parse some CBOR payload:
#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
uint8_t data[] = {0xa2, 0x43, 0x72, ...
- 18.9k
1
vote
2
answers
3k
views
Encoding and decoding uint8_t using TinyCbor C Library
I am implementing C++ 11 based application and I am using TinyCbor C library for Encoding and Decoding application specific data as below:
#include "cbor.h"
#include <iostream>
using ...
- 12k
0
votes
1
answer
814
views
Issue while encoding and decoding using CBOR
I have below class which I want to decode and encode using TinyCBOR.
class Test {
public:
int a;
int b;
float c;
}
I am doing following to encode and decode this class:
int main () {
...
- 12k
2
votes
1
answer
800
views
Byte vector to integer type: shift and add or implicit conversion through a union?
I am currently implementing CBOR and repeatedly need to read 1, 2, 4, or 8 bytes from a byte array which then need to be combined to an integer type of 1, 2, 4, or 8 bytes.
For the 4 byte case, I ...
- 2,174
0
votes
2
answers
251
views
type mapping between cbor (javascript) and c++
I don't know to which C++ types to map the following cbor (javascript) types:
null
undefined
The other way around, I have not idea to which cbor (javascript) type to map the C++ void type.
- 14.6k
0
votes
2
answers
324
views
variable template "SFINAE" not working
I'm trying to implement the size code for the cbor format with "SFINAE", for lack of a better word. But it doesn't work, as size_code<3>, for example, evaluates to 0x1b. What's wrong?
template &...
- 14.6k
4
votes
3
answers
4k
views
Comparing uint64_t and float for numeric equivalence
I am writing a protocol, that uses RFC 7049 as its binary representation. The standard states, that the protocol may use 32-bit floating point representation of numbers, if their numeric value is ...
