[Pyrex] pyrex and g++
Josiah Carlson
jcarlson at uci.edu
Fri Sep 23 23:24:13 CEST 2005
"Lenard Lindstrom" <len-l at telus.net> wrote:
>
> I don't think the problem is making Pyrex generate code that can compile as C++. I
> think the problem is that the module will be used by an interpreter written and
> compiled in pure C. What happens if a C++ exception is thrown and not caught
> before returning to interpreter's call on a module function. Will the C stack continue
> to unwind and cause the interpreter to crash? Does declaring a C++ function 'extern
> "C"' ensure that any unhandled C++ exceptions are stopped in their tracks before
> they can do harm in C code? ( A quick test using MinGW 3.2.3 shows an exception
> thrown by a C++ function in a dynamic library causes an abnormal termination in a
> C program calling it.)
I'm pretty sure it can be done, otherwise the Boost::Python guys (who
wrap C++ stuff for Python) would be SOL. I don't know how to do it
myself (never having had the occasion to check), but I'm sure that
someone out there has done it, and could explain how it happens.
- Josiah
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