Is there a way to know if a user passes invalid input to a numeric argument with CommandLineParser? e.g. if this is my command line:
./app -s=sss
then this code:
markerSize = parser.get<float>("s");
returns 0 and an error message is printed to the console. I need to know the difference between 0 and invalid input. It doesn't throw an exception so I can't use try … catch.