[C++-sig] Re: Calling a python function from C++ (from Jeff Holle)

[David Abrahams]

Chad Austin <caustin at gmail.com> writes:

>     std::string getPythonErrorString();
>     void checkForPythonError();
>     void requirePythonError();
>
>     /**
>      * Allows us to check for Python errors at the end of a Python
>      * code block whether control left the end of the block or
>      * 'return' was used.
>      */
>     struct PythonCodeErrorSentry {
>         ~PythonCodeErrorSentry() {
>             if (!std::uncaught_exception()) {
>                 checkForPythonError();
>             }
>         }
>     };

Watch that you don't ever destroy one of these from within a catch
block (directly or indirectly), because std::uncaught_exception() will
be false at that point.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com