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### Re^2: why the array index has to start at 0??

by targetsmart (Curate)
 on Jun 23, 2009 at 10:27 UTC ( #773949=note: print w/replies, xml ) Need Help??

IMO it makes much sense for the array to have the first index at 1.
we never call first as "0", we always call first as '1'. so this lead to this thinking.

Vivek
-- 'I' am not the body, 'I' am the 'soul', which has no beginning or no end, no attachment or no aversion, nothing to attain or lose.
• Comment on Re^2: why the array index has to start at 0??

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Re^3: why the array index has to start at 0??
by mirod (Canon) on Jun 23, 2009 at 10:38 UTC

It might make sense to you, but chances are that it won't for the maintainers of your code. Arrays in most languages I know start at index 0, I am not sure going against such a common characteristic is such a good idea.

Re^3: why the array index has to start at 0??
by ikegami (Pope) on Jun 23, 2009 at 15:17 UTC

we never call first as "0", we always call first as '1'. so this lead to this thinking.

Really?

• The first km my car drove was km 0000000 on the odometer.
• The first inch on a ruler is inch zero.
• The first century AD was century zero.
• The first raffle ticket on the spool is xxx000.

It's not exactly a foreign concept.

The first century AD was century zero.

I thought the first century A.D. was century 1, the first year of which was year 1 A.D. (with the year before being 1 B.C.), the concept of "zero" not percolating into European thought until some non-zero number of centuries later. Which is why, twenty centuries later, we are stuck with 2001 being the first year of the twenty-first century.

> the first year of which was year 1 A.D. (with the year before being 1 B.C.)

Actually the troubles arising from not having a year 0 are a very good argument for arrays starting with 0. :)

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)

PS: Je suis Charlie!

oops, fixed.
Re^3: why the array index has to start at 0??
by Anonymous Monk on Jun 23, 2009 at 12:16 UTC
Re^3: why the array index has to start at 0??
by Anonymous Monk on Jun 24, 2009 at 07:19 UTC
On your first birthday, did you turn one or two? :D
Re^3: why the array index has to start at 0??
by bpoag (Monk) on Jun 23, 2009 at 23:38 UTC

This is the "How is babby formed??" of programming questions.

Please tell me who in India taught you how to code, or who otherwise put the idea in your head that array indecies (or anything else programming-wise) should begin with 1, so I can punch them in the neck.

'How is babby formed' features the idiotic ramblings of semi-literate native English speakers. targetsmart has not shown himself to be an idiot.

Why arrays start at index 0 rather than 1 is a good question. It shows that he is questioning the foundations of the language as he learns, and seeking to understand things at a fundamental level.

Basic, "obvious" questions that are so fundamental as to be invisible to most are the type of questions that bring real understanding and advancement.

It is sad to see such rudeness on this site. It is even worse to see racist and ad hominem attacks here.

P.S. The accepted plural form of "index" is typically "indexes", but "indices" is also acceptable. Finding irony of your use of "indecies" is left as an exercise for the reader.

TGI says moo

Please tell me who in India taught you how to code
Nobody taught me, I did self learning from C .. Perl.

who otherwise put the idea in your head that array indecies (or anything else programming-wise) should begin with 1
It is purely my idea/thought
BTW my idea is not to advocate anyone that start using the array index from 1, just wanted to know why it is that way.

so I can punch them in the neck.
you can't :)

Vivek
-- 'I' am not the body, 'I' am the 'soul', which has no beginning or no end, no attachment or no aversion, nothing to attain or lose.

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