Daily bit(e) of C++ | std::current_exception, std::exception_ptr, std::rethrow_exception

Daily bit(e) of C++ #106, Using the C++11 exception storing and re-throwing support when implementing coroutines.

When implementing coroutines, we must decide how we want to handle exceptions.

One option is to ignore exceptions and have the unhandled_exception() method terminate.

Alternatively, we can use the C++11 exception storing and re-throwing support:

• std::current_exception

• std::exception_ptr

• std::rethrow_exception

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