Re: Tuples Library Formal Review

From: jaakko.jarvi_at_[hidden]
Date: 2001-06-20 05:48:14

One minor point for 1 based indexing is, that 
if the programmer has got the base wrong, 
get<0>(t) fails at compile time, whereas in 0 based
indexing get<1>(t) probably wont.

Jaakko

--- In boost_at_y..., John Max Skaller <skaller_at_o...> wrote:
> Peter Dimov wrote:
> > 
> > From: <jaakko.jarvi_at_c...>
> > 
> > > > - Should indexing from 0 to n-1 be supported? Isn't 0-based 
indexing
> > > > more intuitive in C++?
> > 
> > > This is a matter of taste. Others?
> > 
> > Zero-based indexing is usually more intuitive, however, when tuple 
is used
> > as a building block for a bind/lambda library, the arguments are 
one-based.
> > 
> > FWIW, I made the same decision (one-based "tuples") in bind.hpp 
(in the
> > vault.)
> 
> I used 1 indexing in Felix, but just changed it to 0 based.
> A tuple of elements of the same type is an array.
> The convention in mathematics is 1 origin, in C it is 0 origin.
> I personally prefer 1 origin, but I also dislike inconsistencies.
> 
> 	:-)
> 
> -- 
> John (Max) Skaller, mailto:skaller_at_m...
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