[Boost-users] Constructing an error code based on the last error?

Subject: [Boost-users] Constructing an error code based on the last error?
From: Zachary Turner (divisortheory_at_[hidden])
Date: 2009-02-09 11:24:15

Does boost provide a portable way to create a system::error_code object
based on the last error?  I don't see an obvious way to do this via the
documentation unless I'm just overlooking it.  There's lots of ways to
create uninitialized error code objects, or error code objects initialized
to a specific value, but I don't see an obvious portable way of determining
"why the last operation failed".

Anyone encountered this before?