At 02:19 PM 9/10/2004, Peter Dimov wrote:
Beman Dawes wrote:
An attempt to query the attributes, such as is_directory("pagefile.sys") would throw an exception, which can be avoided by checking is_accessible("pagefile.sys").
I'm not sure why would anyone want to omit the is_accessible check before
calling is_directory.
In software which is specified to cope with even rare eventualities without recourse to a general error catch, it probably shouldn't be omitted. In applications which run in a very controlled and tightly specified environment, anything not being accessible is virtually certain to be an error condition, so just letting is_directory() throw is best for those apps. Another question is which other query functions also need to be protected by an is_accessible() test in some applications? --Beman