bad optional access error

[hyeongseok21]

Hello, we encountered [bad optional access error] which occurs when "attempt to access the value of an object that does not contain a value" while doing PA4.

We searched through testrouting.cpp file, and added some printf code for debug, and found parameter of netSystem.run() is 3000000000000.

It seems C++ error, how can I solve this?

here is my debug code and error message indicating value 3000000000000 is inserted automatically

[Pusnow]

Hello, we encountered [bad optional access error] which occurs when "attempt to access the value of an object that does not contain a value" while doing PA4.

This is related to std::optional. Please, refer to the documentation for its usage.

We searched through testrouting.cpp file, and added some printf code for debug, and found parameter of netSystem.run() is 3000000000000.

3,000,000,000,000 is a correct value. 3,000 seconds is 3,000,000,000,000 nanoseconds

[hyeongseok21]

I've read std::optional documentation several times, but could not find a way to solve the error yet...
I just found that I need either catch (std::bad_optional_access const&) or catch (std::exception const&) for dealing with the exception but still I cannot get a situation when does "attempt to access the value of an object that does not contain a value" happens in my code.

Sorry but could you elaborate more about when does that situation happen?

[Pusnow]

You should figure out which optional value is incurring the exception.

It might be helpful to add --gtest_catch_exceptions=0 argumrnt while executing test binary.