Darren New wrote:
> And that's what I asked - what would I google on to see this, given it's
> not defined in exception.h?  What's it called?

It's not directly related to exceptions, since it's a C API (not C++).

GNU libc (not libstdc++!) has C functions to get backtraces at any moment.
It's a GNU extension. You may very well call it in an exception handler.

http://www.gnu.org/software/libtool/manual/libc/Backtraces.html

The Windows API has similar functionality through the DlgHelp module,
especially the StackWalk64() and SymFromAddr() functions.

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