From: Aleksei Guzev <aleksei.guzev@...>
Date: 2001-07-05T21:18:22+09:00
Subject: [ruby-talk:17288] Re: Inheritance

I have hardware, wich in case of division be zero generates an
interrupt. It differentiates integer and float interrrupts. I wish
A) process harware exceptions with Ruby's "rescue" ( I've done this )
B) collect hardware exceptions in class MyException
C) allow processing of Ruby's ZeroDivisionError and my Int- and
Float-DivisionByZero exceptions with single block:
	rescue ZeroDivisionError.
    (Not "rescue ZeroDivisionError, IntDivisionByZero,
FloatDivisionByZero"!)

I require the latter to allow foreign modules (wich do not require my
module) handle exception thrown by my hardware. It seems to be useful.

The only way I see is declaring my exceptions being ZeroDivisionErrors.
But the hardware generates interrupt not only on division by zero, but
on overflow and on array boundaries fault etc. A cannot derive
MyException from ZeroDivisionError, because not all "hardware"
exceptions are caused by division by zero.


# -----Original Message-----
# From: ts [mailto:decoux@moulon.inra.fr] 
# Sent: 5 ���� 2001 �. 18:03
# To: ruby-talk ML
# Cc: ruby-talk@ruby-lang.org
# Subject: [ruby-talk:17287] Re: Inheritance
# 
# 
# >>>>> "A" == Aleksei Guzev <aleksei.guzev@bigfoot.com> writes:
# 
# A> 	class IntDivisionByZero: MyException, ZeroDivisionError {}
#                                  ^^^^^^^^^^^
# 
#  Why do you need this ?
# 
# 
# Guy Decoux
#