On Sep 2, 2010, at 10:42 AM, steve jaffe wrote:
C++ does provide the bare expression "throw;" which rethrows the
currently-
active exception. It may be a better design for nlopt code always to
throw one
of the standard 5 exceptions but I don't think that is required by the
language. Am I missing something?
Unfortunately, the bare "throw" statement of C++ only works within the
context of the catch block that caught the exception. It is useless
in the context of what NLopt needs (catch the exception, set forced-
stop, return from the callback function to execute a bunch of cleanup
code in the C optimization routine, return to C++, re-throw an
exception).
And, because C++ exceptions can have any type at all, there is no
reasonable way to simply save the exception somewhere and rethrow it.
Steven
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