Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.c++ > #119421

Re: std::map::emplace useful in any way?

From "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups comp.lang.c++
Subject Re: std::map::emplace useful in any way?
Date 2024-05-29 12:23 -0700
Organization A noiseless patient Spider
Message-ID <v37vbu$196pe$1@dont-email.me> (permalink)
References (2 earlier) <v34umb$lkv6$1@raubtier-asyl.eternal-september.org> <v36nv1$12e3q$1@dont-email.me> <v36tke$135a1$1@raubtier-asyl.eternal-september.org> <v375n5$14lhk$1@dont-email.me> <v37mnr$17n94$1@raubtier-asyl.eternal-september.org>

Show all headers | View raw

On 5/29/2024 9:56 AM, Bonita Montero wrote:
> Am 29.05.2024 um 14:05 schrieb Paavo Helde:
> 
>> I see you are focusing on another aspect of try_emplace(). Indeed, 
>> try_emplace() is documented to leave any rvalue reference parameters 
>> unchanged if insertion does not happen, which seems to be not possible 
>> with emplace().
> 
> Therefore it isn't possible to emulate try_emplace with that as you
> mentioned. I just wanted to demonstrate that with as less code as
> possible.
> 

thanks.

Back to comp.lang.c++ | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

std::map::emplace useful in any way? Marcel Mueller <news.5.maazl@spamgourmet.org> - 2024-05-25 17:57 +0200
  Re: std::map::emplace useful in any way? Paavo Helde <eesnimi@osa.pri.ee> - 2024-05-25 20:37 +0300
    Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-05-28 17:53 +0200
      Re: std::map::emplace useful in any way? Paavo Helde <eesnimi@osa.pri.ee> - 2024-05-29 11:11 +0300
        Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-05-29 11:47 +0200
          Re: std::map::emplace useful in any way? Paavo Helde <eesnimi@osa.pri.ee> - 2024-05-29 15:05 +0300
            Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-05-29 18:56 +0200
              Re: std::map::emplace useful in any way? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-05-29 12:23 -0700
                Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-05-30 16:01 +0200
  Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-05-25 19:41 +0200
    Re: std::map::emplace useful in any way? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2024-06-30 09:47 -0700
      Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-06-30 19:15 +0200
        Re: std::map::emplace useful in any way? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2024-06-30 11:46 -0700
        Re: std::map::emplace useful in any way? usenet@stegropa.de (Stefan Große Pawig) - 2024-06-30 21:21 +0200
          Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-06-30 23:49 +0200
            Re: std::map::emplace useful in any way? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2024-06-30 18:29 -0700
              Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-07-01 13:41 +0200
                Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-07-07 13:17 +0200
                Re: std::map::emplace useful in any way? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2024-07-07 09:16 -0700
                Re: std::map::emplace useful in any way? Bonita Montero <Bonita.Montero@gmail.com> - 2024-07-07 18:18 +0200
            Re: std::map::emplace useful in any way? usenet@stegropa.de (Stefan Große Pawig) - 2024-07-01 07:41 +0200
  Re: std::map::emplace useful in any way? Sam <sam@email-scan.com> - 2024-05-25 18:29 -0400
  Re: std::map::emplace useful in any way? usenet@stegropa.de (Stefan Große Pawig) - 2024-06-30 21:09 +0200
  Re: std::map::emplace useful in any way? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2024-06-30 13:32 -0700
    Re: std::map::emplace useful in any way? Marcel Mueller <news.5.maazl@spamgourmet.org> - 2024-07-07 11:09 +0200

csiph-web