Incorrect Error Message: identifier "concept" is undefined

[lemorage]

If I put the following code into the vscode editor, it will notify me identifier "concept" is undefined C/C++(20) (while I can compile and run it smoothly). I'd like to know if there is a way to get around this. I think some existing issues are pointing to this, like #11624, but I am unsure if this is still to be resolved.

#include <concepts>

template<typename Num>
concept Numeric = std::is_arithmetic_v<Num>;

template<typename Num>
requires Numeric<Num>
double convert_f_to_c(Num temperature) {
    return (temperature - 32) * 5 / 9;
}

• MacOS Version: 14.1.2
• VSCode Version: 1.87.2
• C/C++ Extension Version: 1.19.9
• Clang Version: 15.0.0

[sean-mcmanus]

@lemorage It works for me without errors. You need to set cppStandard to "c++20" or higher. Also, running the C/C++: Log Diagnostics command with test.cpp active should give more configuration info.

[lemorage]

Ah, yes! That works. I thought I'd set the config before, but it turned out the config was the default in this project. That's why the error occurs. Anyway, thank you!