Gabriel Dos Reis wrote:
On Fri, Apr 17, 2009 at 6:55 AM, Alexander Terekhov <terekhov@web.de> wrote:
Gabriel Dos Reis wrote:
On Thu, Apr 16, 2009 at 7:11 PM, Alexander Terekhov <terekhov@web.de> wrote:
Scott McMurray wrote: [...]
I don't see how you're going to get the "at throw point" you're asking for.
Two-phase EH.
An implementation strategy used by some compilers. It is not something required by C++. It is mysterious why some popular compilers insist on using that strategy when they know they are dealing with C++ applications.
Because that strategy allows to not unwind the stack for unexpected exceptions.
So, now we are talking of cost of doing something not required by C++ semantics; rarely used in practice, but with a cost imposed on those who don't want it. A strategy that hurts performance of C++ programs.
Wow. Are you sure? Let all the folks like http://infocenter.arm.com/help/topic/com.arm.doc.ihi0038a/IHI0038A_ehabi.pdf know about such disastrous nature of two-phase EH. regards, alexander.