Expose node command line arguments in ros 2

Is there any way in ros 2 to know about the command line arguments in the application level ?

For example if I do ros2 run demo_node_cpp talker __params:=test.yaml , I want to check inside the code whether I have given the correct yaml file or not.

Any help would be appreciated.

Asked by Skyking on 2018-09-13 06:21:16 UTC

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I am not sure what exactly you are asking for. The talker executable has a main function which receives the command line arguments as argc / argv. So whatever check you would like to perform can happen right at the beginning of the main function.

Asked by Dirk Thomas on 2018-09-13 10:48:19 UTC

Expose node command line arguments in ros 2

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