default constructed

"Default constructed" refers to an object that has been created using its default constructor, which is a constructor that takes no arguments. When an object is default constructed, its member variables are initialized to their default values according to their types. For example, for numeric types such as int or double, the default value is 0, and for bool, the default value is false. It is also possible for user-defined types to have a default constructor defined by the user, in which case the object is initialized according to the implementation of that constructor.

相关问题

self.parser.add_argument('--dset_dir', type=str, default=os.path.join(os.environ['HOME'], 'slowbro'))

As an AI language model, I do not have access to the author's environment variables or file paths. Therefore, I cannot provide a meaningful interpretation of this line of code. However, based on the context, it seems that this line is defining a command-line argument parser for a Python script, and the '--dset_dir' argument is being set to a default value of a directory path. The directory path is constructed using the os.path.join() method to join the home directory path (retrieved from the 'HOME' environment variable) with a folder name 'slowbro'.