Re: How to convert a pointer inside a vector back to an iterator ?

From	Bonita Montero <Bonita.Montero@gmail.com>
Newsgroups	comp.lang.c++
Subject	Re: How to convert a pointer inside a vector back to an iterator ?
Date	2023-08-18 22:05 +0200
Organization	A noiseless patient Spider
Message-ID	<uboitu$cncu$1@dont-email.me> (permalink)
References	<ubnljr$89ne$1@dont-email.me> <ubobnt$blc2$1@dont-email.me>

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Am 18.08.2023 um 20:02 schrieb Alf P. Steinbach:
> On 2023-08-18 1:45 PM, Bonita Montero wrote:
>> How can I convert a pointer inside a vector back to an iterator
>> so that the operation is fully optimized away ? I try to use
>> iterators as most as possible to have iterator debugging, but
>> sometimes I've to work togehter with iterator debugging.
> 
> Don't know about "fully optimized away".
> 
> But otherwise, `v.begin() + (p - v.data())`.

If the pointer is inside a register that's optimized away and
the register is considered to be the iterator object afterwards.,

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Thread

How to convert a pointer inside a vector back to an iterator ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-18 13:45 +0200
  Re: How to convert a pointer inside a vector back to an iterator ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2023-08-18 20:02 +0200
    Re: How to convert a pointer inside a vector back to an iterator ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-18 22:05 +0200

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