[c++-pthreads] Re: pthread_cancel and EH: let's try this again

[Mark Mitchell]

Jason Merrill wrote:
> On Fri, 15 Jul 2005 00:53:40 -0700, Mark Mitchell <mark at codesourcery.com> wrote:
> 
> 
>>The whole point of destructors and exceptions in C++ is that you are 
>>guaranteed that all exits from a block will result in a particular set 
>>of cleanup code -- including both destructors and the bodies of catch 
>>clauses -- being run in a particular order.
> 
> 
> Not all exits.  A return, break or goto from within a try block skips catch
> clauses.

True, as does falling off the end of the try block.

However, the point remains; people put cleanup code in "catch (...)" blocks.

In fact, that approach works fine with cancellation on current GNU/Linux 
systems, so long as you re-throw at the end of the catch clause -- and 
#2 would break that body of code.

-- 
Mark Mitchell
CodeSourcery, LLC
mark at codesourcery.com
(916) 791-8304