cpp/filesystem/filesystem error/filesystem error

Constructs a new object.

@1-3@ The error code is set to and optionally, the paths that were involved in the operation that resulted in the error, are set to  and. after construction returns a string that contains (assuming that it does not contain an embedded null character ). If either or both arguments are not provided, a null  is used instead.

@4@ Copy constructor. Initialize the contents with those of. If and  both have dynamic type  then.