[petsc-dev] CHKERRXX() to propagate errors from C

[Aron Ahmadia]

Matt,

The only serious defense of exceptions I know of is that you can use them to
avoid the boilerplate you guys use heavily throughout your source
(CHKERRQ/SETERRQ).  As long as you remain committed to the boilerplate, I
can't think of anything that exceptions grant you in C style code.  As Barry
notes, they can be used to try and handle things in
constructors/destructors, but they are very dangerous in those methods and
only work when every data member can clean itself up (see:
http://www.parashift.com/c++-faq-lite/exceptions.html#faq-17.10)

-A
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