From: Iain Dooley <idoo4002@...>
Date: 2005-08-29T10:40:47+09:00
Subject: catching segmentation faults from Ruby

hello, i've got ruby embedded into an application, and i've built a code 
editor that allows you to edit ruby code for a GUI at runtime. only 
problem is that something like this:

@parent.child("widgetName").display(@count)

will crash ruby if there is no child of parent with name "widgetName". i 
know that there is rb_funcall_protect that allows you to trap errors, 
but the problem is that i'm not doing an rb_funcall. the functions are 
being called from with Qt/Ruby bindings. is there a way that i can trap 
all errors from the ruby interpreter to prevent segfaults in dynamically 
edited code from crashing the program?

cheers

iain