Subject: Re: [boost] [review] Multiprecision review (June 8th - 17th, 2012)
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2012-06-25 00:05:28
AMDG
On 06/24/2012 07:58 PM, Edward Diener wrote:
>
> As a single example of this the gmp_int backend triggers a division by 0
> signal when one tries to divide the integer by 0; the tom_int raises a
> hardward signal with a division by 0; the cpp_int throws a
> std::runtime_error with a division by 0. I would like to see some means
> by which I could use any integer backend and know that a
> std::runtime_error would be thrown by a division by 0.
>
IMO, you should just avoid division by zero period.
As far as C++ itself is concerned, division by 0
is undefined behavior, so any code that wants to
handle any numeric type including builtins can't
assume anything about division by zero.
In Christ,
Steven Watanabe