Re: Why (substring "abc" 0 4) does not return "abc" instead of an error?

[Bastien]

Stefan Monnier <address@hidden> writes:

> We have general functionality when you want to ignore some errors, such
> as condition-case.

Also, I'm fine with

  (substring "abc" -1 1)
    => #ERROR

so using ̀condition-case' would not help me distinguish
between the case above and (substring "abc" 0 4), which
is what I want.

I see the benefit of having 

  (substring "abc" 0 4)
    => "abc"

in terms of simplifying Elisp writing -- and I still fail
to see the harm (but maybe Pascal will tell me where he has
been bitten by this.)

-- 
 Bastien