Error using std::to_hex() when compiled with MSVC

[chaarirami]

Calling

std::vector<uint8_t> payloadArray(payload.buffer, payload.buffer + payload.len);
spdlog::info("Received payload from topic {}: {:n}", topic, spdlog::to_hex(std::begin(payloadArray), std::end(payloadArray)));

yields the following error:

error C3615: constexpr function 'fmt::v8::detail::parse_format_specs' cannot result in a constant expression
/fmt/bundled/core.h(2675,17): message : failure was caused by call of undefined function or one not declared 'constexpr' 
message : see usage of 'fmt::v8::formatter<spdlog::details::dump_info<std::_Vector_iterator<std::_Vector_val<std::_Simple_types<_Ty>>>>,char,void>::parse' 
          with
          [
              _Ty=uint8_t
          ]

Any suggestion on how to fix this error?
Thank you for your help.

[tt4g]

I think this is fmt library issue. Maybe related fmtlib/fmt#2761

Is the workaround fmt::runtime() work?

#2430 (comment)

It appears to be a problem with the fmt library or the clang compiler fmtlib/fmt#2455.
Does this workaround fmtlib/fmt#2438 not work?

[chaarirami]

Thanks, I was able to fix the issue using

spdlog::info(fmt::runtime("Received payload from topic {}: {:n}"), topic, spdlog::to_hex(std::begin(receivedPayload), std::end(receivedPayload)));