[boost] Filesystem Library --- exceptions

From: Vladimir Prus (ghost_at_[hidden])
Date: 2002-09-23 03:35:23

Beman,
I'm starting to think that exceptions thrown by the filesystem library 
are too coarse grained --- there is many types of errors, all of them 
result in the same class thrown, and the only way to tell what happened 
is to look at 'what()' results.

To be concrete, suppose I call 'rename' and it throws. There are at 
least to reasons of failure: (1) source file does not exist and (2) 
source and destination are on different drives/filesystems. In the 
second case I'd want to call 'copy', followed by 'remove'. However, how 
can I detect that the second case caused the error?

- Volodya