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Groups > comp.lang.c++ > #82404

Re: equal_range sucks !

From Bonita Montero <Bonita.Montero@gmail.com>
Newsgroups comp.lang.c++
Subject Re: equal_range sucks !
Date 2021-11-23 16:04 +0100
Organization A noiseless patient Spider
Message-ID <snivuo$d2n$1@dont-email.me> (permalink)
References <snivjr$afv$1@dont-email.me>

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Am 23.11.2021 um 15:59 schrieb Bonita Montero:
> I just tried this:
> 
>      pair<cpu_it, cpu_it> foundApicId = equal_range( apicIds.begin(), 
> apicIds.end(),
>          apicId, []( cpu_apic_id const &idRange, unsigned apicId ) { 
> return idRange.apicId == apicId; } );
> 
> It should be possible that the key for the range has a different type
> than than the elemnens in the range so that I can compare against a
> part of the range-objects like in the above code.
> 
> Instead I'd hat to write:
> 
>      pair<cpu_it, cpu_it> foundApicId = equal_range( apicIds.begin(), 
> apicIds.end(),
>          cpu_apic_id( -1, apicId ), []( cpu_apic_id const &idRange, 
> cpu_apic_id const &id ) { return idRange.apicId == id.apicId; } );
> 

And even more: I've to use const-references in my lambda.
Who thinks up such nonsense ?

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Thread

equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-23 15:59 +0100
  Re: equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-23 16:04 +0100
    Re: equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-23 17:13 +0100
      Re: equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-23 19:53 +0100
        Re: equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-25 15:02 +0100
      Re: equal_range sucks ! Juha Nieminen <nospam@thanks.invalid> - 2021-11-24 08:06 +0000
        Re: equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-24 18:18 +0100
  Re: equal_range sucks ! Marcel Mueller <news.5.maazl@spamgourmet.org> - 2021-11-28 12:36 +0100
    Re: equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-28 17:04 +0100
      Re: equal_range sucks ! Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-28 17:23 +0100

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