CODEWITHSUNDEEP
c++gccc++20
user2183336
user2183336

Reputation: 655

std::chrono::from_stream gcc availability, is unavailable in gcc 10.1.0

I'm wondering what version of gcc I need to use new std::chrono::from_stream. I'm on 10.1.0 but the compiler doesn't know the name. I don't see any trace of the feature on the GNU cxx status page. Thank you!

#include <chrono>
std::chrono::from_stream(stream, "%Y-%m-%d %H:%M:%S", timeDuration);


 error: no member named 'from_stream' in namespace 'std::chrono' [clang-diagnostic-error]
     std::chrono::from_stream(stream, "%Y-%m-%d %H:%M:%S", timeDuration);


# g++ --version
g++ (GCC) 10.1.0

Upvotes: 3

Views: 1370

Answers (1)

Howard Hinnant
Howard Hinnant

Reputation: 219335

Your link is for the C++ compiler status. Here is the status of the gcc std::lib. As I write this, it isn't implemented yet (though I'm aware work has begun).

Until it is available, here is a free, open-source preview of this part of C++20. from_stream (and parse) are in namespace date instead of namespace std::chrono, and in the header date.h.

Upvotes: 4

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