[Numpy-discussion] Proposed Roadmap Overview

Charles R Harris charlesr.harris@gmail....
Sat Feb 18 14:29:47 CST 2012


On Fri, Feb 17, 2012 at 10:16 PM, Sturla Molden <sturla@molden.no> wrote:

>
>
> Den 18. feb. 2012 kl. 05:56 skrev Charles R Harris <
> charlesr.harris@gmail.com>:
>
>
>>
> But won't a C++ wrapper catch that?
>
>
> A try-catch block with MSVC will register an SEH with the operating
> system. GCC (g++) implements exceptions without SEH. What happens if GCC
> code tries to catch a std::bad_alloc? Windows intervenes and sends control
> to a registered SEH. So the flow of control jumps out of GCC's hands, and
> goes to some catch or __except block set by MSVC instead. And now the
> stack is FUBAR... But this can always happen when you mix MSVC and MinGW.
> Even pure C code can set an SEH with MSVC, so it's not a C++ issue. You
> cannot wrap in a way that protects you from an intervention by the
> operating system. It's better to stick with MS and Intel compilers on
> Windows. MinGW code must execute in an SEH free environment.
>
>
Here's a link with some current
comments<http://www.kineticsystem.org/?q=node/19>on mingw-64. I have
the impression that things are moving (slowly) towards
interoperability.

Chuck

>
>
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