Re^3: Throw compilation error(or warning) if duplicate keys are present in hash


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Re^3: Throw compilation error(or warning) if duplicate keys are present in hash

by rovf (Priest)

on Nov 24, 2011 at 10:02 UTC ( [id://939840]=note: print w/replies, xml )

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in reply to Re^2: Throw compilation error(or warning) if duplicate keys are present in hash
in thread Throw compilation error(or warning) if duplicate keys are present in hash

It is a manually generated .pm file by the people who are not very much familiar with perl syntax. Hence I suspect that there might be a good chance of mistyping an existing key.

You could get those people into assigning not to %hash, but to @hash, i.e. an array instead. Later in the program, you check @hash whether a "key" occurs twice, before assigning to %hash.

--
Ronald Fischer <ynnor@mm.st>

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Re^4: Throw compilation error(or warning) if duplicate keys are present in hash by I_love_perl (Novice) on Nov 24, 2011 at 12:18 UTC
Hi Ronald Yes. Absolutely we can write a piece of code to check for the existence of duplicate keys in a hash or array. But I felt like it should be present in some perl program check utilities (like use strict, use warnings). As I don't know if this facility is available in perl I posted this query to know if there some package(or pragma) available for this kind of checks.	[reply]

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