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Groups > comp.lang.c++ > #80243 > unrolled thread
| Started by | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| First post | 2021-06-10 12:18 +0200 |
| Last post | 2021-06-11 17:06 +0200 |
| Articles | 20 on this page of 252 — 51 participants |
Back to article view | Back to comp.lang.c++
Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-10 12:18 +0200
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-10 13:21 +0200
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-10 14:37 +0300
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-10 15:44 +0200
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-10 16:39 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-10 16:47 +0200
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-10 22:00 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-10 22:09 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-11 06:57 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-11 13:16 +0200
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-11 13:27 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-11 13:53 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-11 19:12 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 04:09 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-12 08:50 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 15:43 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-12 18:59 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 07:31 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 08:09 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 14:12 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 09:50 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 16:05 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 11:23 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 18:56 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 13:37 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-14 05:16 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-14 07:00 -0400
Re: Why does vector::reserve() not grow exponentially MrSpook_t0Y6kgpd5@3dryi7no.gov - 2021-06-13 08:39 +0000
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-11 19:11 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 04:10 +0200
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-11 22:18 -0700
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 08:18 +0200
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-12 01:43 -0700
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 11:00 +0200
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-12 02:04 -0700
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 11:15 +0200
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-12 02:24 -0700
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 11:30 +0200
Re: Why does vector::reserve() not grow exponentially ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-06-12 12:59 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 13:27 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 13:19 +0200
Re: Why does vector::reserve() not grow exponentially ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-06-12 13:30 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 13:39 +0200
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-12 14:04 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 15:30 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-12 08:53 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 15:31 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-12 18:43 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 07:31 +0200
Re: Why does vector::reserve() not grow exponentially ? Richard Damon <Richard@Damon-Family.org> - 2021-06-13 07:48 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 14:03 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 14:12 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 11:21 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-13 18:55 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 13:38 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-14 05:18 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-14 07:00 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-14 13:08 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-14 18:35 -0400
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-14 22:49 -0700
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-15 08:11 -0400
Re: Why does vector::reserve() not grow exponentially MrSpook_ka1o_g@otuej9sdvqn8a4.gov.uk - 2021-06-15 12:54 +0000
Re: Why does vector::reserve() not grow exponentially "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-15 13:09 -0700
Re: Why does vector::reserve() not grow exponentially MrSpook_b1My5@751smt.edu - 2021-06-16 08:44 +0000
Re: Why does vector::reserve() not grow exponentially Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-16 13:11 +0300
Re: Why does vector::reserve() not grow exponentially MrSpook_p6g@ktmy0vg8lj7jxt.biz - 2021-06-16 10:21 +0000
Re: Why does vector::reserve() not grow exponentially Sam <sam@email-scan.com> - 2021-06-16 06:41 -0400
Re: Why does vector::reserve() not grow exponentially MrSpook_F2ryro5_b@ugk_rvxkkm.gov - 2021-06-16 11:11 +0000
Re: Why does vector::reserve() not grow exponentially Sam <sam@email-scan.com> - 2021-06-16 08:25 -0400
Re: Why does vector::reserve() not grow exponentially Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-16 16:10 +0300
Re: Why does vector::reserve() not grow exponentially David Brown <david.brown@hesbynett.no> - 2021-06-16 15:59 +0200
Re: Why does vector::reserve() not grow exponentially MrSpook_ucGx3e4l@x8gqtuqjwl9z3g.com - 2021-06-16 13:47 +0000
Re: Why does vector::reserve() not grow exponentially scott@slp53.sl.home (Scott Lurndal) - 2021-06-16 15:09 +0000
Re: Why does vector::reserve() not grow exponentially Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-16 17:50 +0200
Re: Why does vector::reserve() not grow exponentially MrSpook_hjesjs@8pot25r5sg1xe.info - 2021-06-16 15:45 +0000
Re: Why does vector::reserve() not grow exponentially Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-16 21:08 +0300
Re: Why does vector::reserve() not grow exponentially scott@slp53.sl.home (Scott Lurndal) - 2021-06-16 19:06 +0000
Re: Why does vector::reserve() not grow exponentially Juha Nieminen <nospam@thanks.invalid> - 2021-06-16 13:09 +0000
Re: Why does vector::reserve() not grow exponentially ? Manfred <noname@add.invalid> - 2021-06-15 20:30 +0200
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-16 04:33 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 10:35 +0200
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 11:18 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_u_kch7_3@abbbp5z5c0iw8rwgxg4.gov - 2021-06-16 09:34 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 11:53 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_ge@ldwlviy1f9uwd19thc.gov - 2021-06-16 10:19 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 13:09 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_3_fdyox@sg5nvjmv741xbigdp6.info - 2021-06-16 09:04 +0000
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-16 09:20 +0000
Re: Why does vector::reserve() not grow exponentially ? Tim Woodall <news001@woodall.me.uk> - 2021-06-16 09:49 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 13:14 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_G1Sw6pdcqz@5a69.edu - 2021-06-16 11:25 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 14:43 +0200
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 14:44 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_g3w@2ur2yrijxtw7d3jt394yu9dp.org - 2021-06-16 13:48 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 16:07 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_74D@ov88_wt8h.co.uk - 2021-06-16 13:54 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 19:55 +0200
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-16 13:14 +0000
Re: Why does vector::reserve() not grow exponentially ? James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-06-16 10:38 -0400
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-16 19:58 +0200
Re: Why does vector::reserve() not grow exponentially ? "daniel...@gmail.com" <danielaparker@gmail.com> - 2021-06-17 13:45 -0700
Re: Why does vector::reserve() not grow exponentially ? Real Troll <real.troll@trolls.com> - 2021-06-17 21:15 +0000
Re: Why does vector::reserve() not grow exponentially ? Manfred <noname@add.invalid> - 2021-06-18 15:23 +0200
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-18 08:56 +0200
Re: Why does vector::reserve() not grow exponentially ? "daniel...@gmail.com" <danielaparker@gmail.com> - 2021-06-18 08:06 -0700
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-18 17:41 +0200
Re: Why does vector::reserve() not grow exponentially ? "daniel...@gmail.com" <danielaparker@gmail.com> - 2021-06-18 14:31 -0700
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-19 02:53 -0700
Re: Why does vector::reserve() not grow exponentially ? Ian Collins <ian-news@hotmail.com> - 2021-06-19 11:10 +1200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_gavL@es9w71p.tv - 2021-06-18 15:53 +0000
Re: Why does vector::reserve() not grow exponentially ? scott@slp53.sl.home (Scott Lurndal) - 2021-06-18 16:06 +0000
Re: Why does vector::reserve() not grow exponentially ? MrSpook_Zp_@opm5ve6jyhq.ac.uk - 2021-06-18 09:22 +0000
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-16 04:55 -0700
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-16 13:16 +0000
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-16 11:03 -0700
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-17 05:35 +0000
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-17 16:51 -0700
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-17 20:19 -0400
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-17 18:22 -0700
Re: Why does vector::reserve() not grow exponentially ? MrSpook_6a2az@yxcggolr9p.com - 2021-06-18 09:24 +0000
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-18 08:20 -0400
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-18 15:38 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-18 18:01 -0400
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-19 12:32 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-19 09:12 -0400
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-19 15:24 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-19 17:33 -0400
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-20 09:45 +0200
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-19 03:33 -0700
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-19 09:38 -0400
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-19 12:50 -0700
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-19 17:46 -0400
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-20 05:19 -0700
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-19 23:27 +0300
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-19 17:50 -0400
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-19 16:44 -0700
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-18 17:46 +0300
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-18 17:41 -0400
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-19 11:21 +0300
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-19 09:08 -0400
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-20 21:09 +0300
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-20 11:59 -0700
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-20 22:02 +0300
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-20 14:56 -0700
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-21 09:22 +0300
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-21 16:46 -0700
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-22 10:56 +0300
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-22 12:49 -0700
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-23 01:36 +0300
Re: Why does vector::reserve() not grow exponentially ? scott@slp53.sl.home (Scott Lurndal) - 2021-06-23 14:32 +0000
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-23 16:55 +0200
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-24 16:13 -0700
Re: Why does vector::reserve() not grow exponentially ? scott@slp53.sl.home (Scott Lurndal) - 2021-06-25 14:34 +0000
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-25 12:16 -0700
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-22 15:36 -0700
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-24 16:09 -0700
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-21 17:12 -0700
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-20 19:03 -0400
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-21 09:52 +0300
Re: Why does vector::reserve() not grow exponentially ? red floyd <no.spam.here@its.invalid> - 2021-06-18 00:18 -0700
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-18 02:06 -0700
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-21 12:43 +0000
Re: Why does vector::reserve() not grow exponentially ? Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2021-06-21 22:48 +0100
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-22 05:30 +0000
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-21 23:12 -0700
Re: Why does vector::reserve() not grow exponentially ? MrSpook_D_a3U17y@j_az.net - 2021-06-22 07:14 +0000
Re: Why does vector::reserve() not grow exponentially ? Manfred <noname@add.invalid> - 2021-06-22 13:49 +0200
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-22 08:03 +0000
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-22 01:28 -0700
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-23 06:19 +0000
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-23 04:18 -0700
Re: Why does vector::reserve() not grow exponentially ? Juha Nieminen <nospam@thanks.invalid> - 2021-06-21 12:39 +0000
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-15 08:01 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-15 08:12 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-15 15:34 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-15 17:37 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-16 02:17 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-15 21:11 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-16 07:09 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-16 06:37 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-16 13:01 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-16 08:16 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-16 15:35 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-16 17:40 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-16 13:40 +0200
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-16 18:10 +0300
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-16 14:37 +0300
Re: Why does vector::reserve() not grow exponentially ? scott@slp53.sl.home (Scott Lurndal) - 2021-06-16 15:04 +0000
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-16 17:37 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-16 17:40 -0400
Re: Why does vector::reserve() not grow exponentially ? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-06-16 16:25 -0700
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-16 23:17 -0400
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-17 09:22 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_e0mt@hszpo62mi.com - 2021-06-17 08:31 +0000
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-17 07:11 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-17 09:24 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-17 16:43 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 08:11 -0400
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-13 08:10 -0400
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-12 14:01 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 15:34 +0200
Re: Why does vector::reserve() not grow exponentially ? Ian Collins <ian-news@hotmail.com> - 2021-06-13 13:01 +1200
Re: Why does vector::reserve() not grow exponentially ? Öö Tiib <ootiib@hot.ee> - 2021-06-13 07:39 -0700
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-12 10:51 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 11:03 +0200
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-12 13:07 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 13:22 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-12 08:52 -0400
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-10 16:51 -0700
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-11 09:52 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-11 13:17 +0200
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-11 13:45 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-11 13:54 +0200
Re: Why does vector::reserve() not grow exponentially ? David Brown <david.brown@hesbynett.no> - 2021-06-11 15:58 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-11 16:35 +0200
Re: Why does vector::reserve() not grow exponentially ? Manfred <noname@add.invalid> - 2021-06-11 17:11 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-11 17:12 +0200
Re: Why does vector::reserve() not grow exponentially ? Christian Gollwitzer <auriocus@gmx.de> - 2021-06-11 21:15 +0200
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-11 21:58 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-12 04:11 +0200
Re: Why does vector::reserve() not grow exponentially ? Sam <sam@email-scan.com> - 2021-06-11 06:55 -0400
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-11 13:19 +0200
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-10 16:51 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_sw@08_cl170xu11o4f8xcg45.co.uk - 2021-06-10 15:25 +0000
Re: Why does vector::reserve() not grow exponentially ? Bonita Montero <Bonita.Montero@gmail.com> - 2021-06-10 18:18 +0200
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-10 22:40 +0300
Re: Why does vector::reserve() not grow exponentially ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-06-10 22:35 +0200
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-11 09:23 +0300
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-11 12:02 +0200
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-11 03:05 -0700
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-11 03:22 -0700
Re: Why does vector::reserve() not grow exponentially ? "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-06-11 12:25 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_4421gcxq@fceufv2.ac.uk - 2021-06-11 11:39 +0000
Re: Why does vector::reserve() not grow exponentially ? MrSpook_3wcC2u9@cns8.net - 2021-06-11 10:18 +0000
Re: Why does vector::reserve() not grow exponentially ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-06-11 03:27 -0700
Re: Why does vector::reserve() not grow exponentially ? MrSpook_4bkzrb03@tu45utvus6nuc.tv - 2021-06-11 10:17 +0000
Re: Why does vector::reserve() not grow exponentially ? Manfred <noname@add.invalid> - 2021-06-11 13:22 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_0nG@p900whw6_n8r7ovwuul.ac.uk - 2021-06-11 11:34 +0000
Re: Why does vector::reserve() not grow exponentially ? Manfred <noname@add.invalid> - 2021-06-11 14:14 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_p_5Ko4g@21yhpi_n4fck_wfz.org - 2021-06-11 12:50 +0000
Re: Why does vector::reserve() not grow exponentially ? MrSpook_0sk4i3p@b1km5k73i1.edu - 2021-06-11 09:24 +0000
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-11 14:18 +0300
Re: Why does vector::reserve() not grow exponentially ? Bo Persson <bo@bo-persson.se> - 2021-06-11 11:59 +0200
Re: Why does vector::reserve() not grow exponentially ? MrSpook_jyc2xeWf9@aw55u6.gov - 2021-06-11 10:17 +0000
Re: Why does vector::reserve() not grow exponentially ? MrSpook_3dnim@5ooodqy.co.uk - 2021-06-11 09:19 +0000
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-11 14:26 +0300
Re: Why does vector::reserve() not grow exponentially ? MrSpook_35@s879vvmwpgee7rpqv.net - 2021-06-11 11:38 +0000
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-11 15:14 +0300
Re: Why does vector::reserve() not grow exponentially ? MrSpook_uQjuVe@5szcyauh_pjzi228wvwn.info - 2021-06-11 12:52 +0000
Re: Why does vector::reserve() not grow exponentially ? Paavo Helde <myfirstname@osa.pri.ee> - 2021-06-11 16:37 +0300
Re: Why does vector::reserve() not grow exponentially ? MrSpook_9fpRQm@i1z834r.net - 2021-06-11 14:58 +0000
Re: Why does vector::reserve() not grow exponentially ? Manfred <noname@add.invalid> - 2021-06-11 17:06 +0200
Page 11 of 13 — ← Prev page 1 … 9 10 [11] 12 13 Next page →
| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-12 15:34 +0200 |
| Message-ID | <sa2d5k$jgm$1@dont-email.me> |
| In reply to | #80347 |
> And there is, of course, no requirement that things end up as a call > to "malloc" here. In particular, since C++14 (IIRC) there are sized > overloads of delete which open the possibility of having more efficient > memory allocation systems than traditional malloc/free as the heap no > longer has to track the sizes of the allocated objects. .. There aren't no such special implementations since the allocations only have to adhere to maxalign_t. > And even if Bonita was right that everything ends up in a call > to malloc, she would /still/ be wrong. Malloc is part of the > implementation - the implementation can have a way to find out the size > of the memory actually allocated (since it knows all the details of the > heap implementation), and make that available to other implementation > code such as the C++ container library. malloc() has to be replaceable - that's what a lot of developers expect because they want to exchange the memory-allocators to faster implemen- tations. Because of that the major C++ runtimes are all built on top of malloc().
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| From | Ian Collins <ian-news@hotmail.com> |
|---|---|
| Date | 2021-06-13 13:01 +1200 |
| Message-ID | <iil3o6Fsnn5U1@mid.individual.net> |
| In reply to | #80338 |
On 12/06/2021 21:24, Öö Tiib wrote: > On Saturday, 12 June 2021 at 12:15:53 UTC+3, Bonita Montero wrote: >>>> I said that it "indirectly" calls malloc. >>>> It calls it via std::allocator. >> >>> What is it? Where and when is std::allocator required to call what? >>> You continue not knowing what you talk about. >> std::allocator isn't required to do that, but at last everyone expects >> it to call malloc() in some way; it doesn't matter if it does this via >> new or directly. This is to meet the expectations that the >> memory-allo-ocator is globally replaceable. > > Continuing to prove that you do not know what you talk about? You do realise that you are arguing with someone who can't even learn to quote? -- Ian.
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| From | Öö Tiib <ootiib@hot.ee> |
|---|---|
| Date | 2021-06-13 07:39 -0700 |
| Message-ID | <e0490af8-2a14-4289-8ed0-0087d3727d1cn@googlegroups.com> |
| In reply to | #80362 |
On Sunday, 13 June 2021 at 04:02:14 UTC+3, Ian Collins wrote: > On 12/06/2021 21:24, Öö Tiib wrote: > > On Saturday, 12 June 2021 at 12:15:53 UTC+3, Bonita Montero wrote: > >>>> I said that it "indirectly" calls malloc. > >>>> It calls it via std::allocator. > >> > >>> What is it? Where and when is std::allocator required to call what? > >>> You continue not knowing what you talk about. > >> std::allocator isn't required to do that, but at last everyone expects > >> it to call malloc() in some way; it doesn't matter if it does this via > >> new or directly. This is to meet the expectations that the > >> memory-allo-ocator is globally replaceable. > > > > Continuing to prove that you do not know what you talk about? > You do realise that you are arguing with someone who can't even learn to > quote? Oh, I knew it very well ... just as it was Saturday I answered to it but now it is degraded to typical pathetic snip and run.
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| From | Bo Persson <bo@bo-persson.se> |
|---|---|
| Date | 2021-06-12 10:51 +0200 |
| Message-ID | <iijatfFldsuU1@mid.individual.net> |
| In reply to | #80331 |
On 2021-06-12 at 08:18, Bonita Montero wrote: >> But no one discussed what there exists? How it is argument what >> the libraries implement? The C++ standard is not meant to be reactive >> to what libraries implement. It is specification that tries to be >> visionary >> and so to allow things that (people keep telling to you) are possible >> and potentially profitable. > > C++ standard-libraries are designed that they indirectly use malloc(). > That's while you can replace malloc and change all the allocations in > you program. Having such a special allocator that returns the size > actually allocated would break that. Not really. It is true that std::allocator has to use operator new, but this is what the standard says about that operator: "Executes a loop: Within the loop, the function first attempts to allocate the requested storage. Whether the attempt involves a call to the C standard library functions malloc or aligned_alloc is unspecified." http://eel.is/c++draft/new.delete#single-4.1
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-12 11:03 +0200 |
| Message-ID | <sa1t8a$9id$1@dont-email.me> |
| In reply to | #80333 |
> It is true that std::allocator has to use operator new, but this is what > the standard says about that operator: > "Executes a loop: Within the loop, the function first attempts to > allocate the requested storage. Whether the attempt involves a call to > the C standard library functions malloc or aligned_alloc is unspecified." Can't you read, moron ? I said that it "indirectly calls malloc", i.e. everything is built on top of malloc(). I.e. new calls malloc, std::allocator<> calls new and the container calls std:allocator. That's what the user expects because in this way you could replace the whole C++ memory-alloction by replacing malloc() like a few memory-allocators like mimalloc, jemalloc, tcmallog e.g. do it.
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| From | Bo Persson <bo@bo-persson.se> |
|---|---|
| Date | 2021-06-12 13:07 +0200 |
| Message-ID | <iijisbFmtfqU1@mid.individual.net> |
| In reply to | #80335 |
On 2021-06-12 at 11:03, Bonita Montero wrote: >> It is true that std::allocator has to use operator new, but this is >> what the standard says about that operator: >> "Executes a loop: Within the loop, the function first attempts to >> allocate the requested storage. Whether the attempt involves a call to >> the C standard library functions malloc or aligned_alloc is >> unspecified." > > Can't you read, moron ? I said that it "indirectly calls malloc", > i.e. everything is built on top of malloc(). I.e. new calls malloc, > std::allocator<> calls new and the container calls std:allocator. > That's what the user expects because in this way you could replace > the whole C++ memory-alloction by replacing malloc() like a few > memory-allocators like mimalloc, jemalloc, tcmallog e.g. do it. So where does the standard say that "involves a call" only means a direct call? And that an indirect call is still required even when a direct call is not?
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-12 13:22 +0200 |
| Message-ID | <sa25e1$vs5$1@dont-email.me> |
| In reply to | #80342 |
> So where does the standard say that "involves a call" only means a > direct call? And that an indirect call is still required even when a > direct call is not? The standard doesn't guarantee that, but the standard libary implemen- tors don't use sth. different than indirectly malloc() to make the whole memory-allocation of the code replaceable. If a sandard libary wouldn't be implemented in that way mimalloc, jemalloc, tcmalloc, Hoard ... woudln't work.
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| From | Sam <sam@email-scan.com> |
|---|---|
| Date | 2021-06-12 08:52 -0400 |
| Subject | Re: Why does vector::reserve() not grow exponentially ? |
| Message-ID | <cone.1623502323.51394.164969.1004@monster.email-scan.com> |
| In reply to | #80331 |
[Multipart message — attachments visible in raw view] — view raw
Bonita Montero writes: >> But no one discussed what there exists? How it is argument what >> the libraries implement? The C++ standard is not meant to be reactive >> to what libraries implement. It is specification that tries to be visionary >> and so to allow things that (people keep telling to you) are possible >> and potentially profitable. > > C++ standard-libraries are designed that they indirectly use malloc(). > That's while you can replace malloc and change all the allocations in > you program. Having such a special allocator that returns the size > actually allocated would break that. I just explained how this can be done. Nobody has to replace malloc. Just because you are incapable of wrapping your brain around this concept doesn't mean that it cannot be done.
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| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Date | 2021-06-10 16:51 -0700 |
| Message-ID | <s9u8h5$1jjf$1@gioia.aioe.org> |
| In reply to | #80259 |
On 6/10/2021 1:00 PM, Bo Persson wrote: > On 2021-06-10 at 16:47, Bonita Montero wrote: >>> No, that would make no sense. It is simply to allow the implementation >>> to round up the capacity a bit if that suits the memory allocator - ... >> >> There are no rounding memory-allocators. You say the allocator you >> want size = n * sizeof(type) memory and it gives you the memory and >> the allocator-API doesn't give you the opportunity to get the size >> actually allocated. So you're wrong. >> > > A standard library for a specific system will just *know* that the > memory allocator is pooled and works in certain chunks. > > For example, if you ask for size = 1 * sizeof(char), you will never get > a single byte. You will get 16 bytes. Fwiw, I have created efficient pooled multi-threaded memory allocators in the past where an allocation of a single char returns the user a block of memory that is equal to the size of a pointer. So it over allocates on anything requested that is less than the size of a pointer. I can show examples if you are interested... If the user request memory that is equal to the size of a pointer or greater, then there is no over allocation.... > > It is then just rational for reserve(1) to result in capacity == 16. > >
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| From | David Brown <david.brown@hesbynett.no> |
|---|---|
| Date | 2021-06-11 09:52 +0200 |
| Message-ID | <s9v4nn$3sa$1@dont-email.me> |
| In reply to | #80248 |
On 10/06/2021 16:47, Bonita Montero wrote: >> No, that would make no sense. It is simply to allow the implementation >> to round up the capacity a bit if that suits the memory allocator - ... > > There are no rounding memory-allocators. You say the allocator you > want size = n * sizeof(type) memory and it gives you the memory and > the allocator-API doesn't give you the opportunity to get the size > actually allocated. So you're wrong. > The allocator API may not tell you when an allocator actually gets more memory than you ask for. But containers like std::vector are part of the standard library - they are not restricted to the public API. A C++ standard library implementation can quite happily have undocumented features that allow std::vector to see how much memory it has /actually/ been allocated, and let it set "capacity" a little higher. Equally, there may be no such extra information available, and no way for the vector to learn of extra memory. Or when you call "reserve" for a size "x", the implementation could round "x" up to the nearest multiple of 16 - or whatever it likes. The implementation has a lot of freedom here.
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-11 13:17 +0200 |
| Message-ID | <s9vgoc$4ns$2@dont-email.me> |
| In reply to | #80274 |
> The allocator API may not tell you when an allocator actually gets more > memory than you ask for. But containers like std::vector are part of > the standard library - they are not restricted to the public API. ... They are because they're restricted to the specified behaviour of the allocator template-parameter.
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| From | David Brown <david.brown@hesbynett.no> |
|---|---|
| Date | 2021-06-11 13:45 +0200 |
| Message-ID | <s9vibv$ue7$1@dont-email.me> |
| In reply to | #80292 |
On 11/06/2021 13:17, Bonita Montero wrote: >> The allocator API may not tell you when an allocator actually gets more >> memory than you ask for. But containers like std::vector are part of >> the standard library - they are not restricted to the public API. ... > > They are because they're restricted to the specified behaviour of the > allocator template-parameter. No, they are not. They need to be able to work with allocators that provide nothing beyond the specified API. But that does not mean that they can use more information and more methods when dealing with standard library allocators. (You snipped my other points - is that because you don't understand them, or because you know they show you are wrong but won't admit it?)
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-11 13:54 +0200 |
| Message-ID | <s9viub$7ns$2@dont-email.me> |
| In reply to | #80302 |
> They need to be able to work with allocators that provide nothing beyond > the specified API. But that does not mean that they can use more > information and more methods when dealing with standard library allocators. The allocator template-parameter is replaceable, so the code has to content itself with the API a allocator provides.
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| From | David Brown <david.brown@hesbynett.no> |
|---|---|
| Date | 2021-06-11 15:58 +0200 |
| Message-ID | <s9vq5n$i6f$1@dont-email.me> |
| In reply to | #80304 |
On 11/06/2021 13:54, Bonita Montero wrote: >> They need to be able to work with allocators that provide nothing beyond >> the specified API. But that does not mean that they can use more >> information and more methods when dealing with standard library >> allocators. > > The allocator template-parameter is replaceable, so the code has to > content itself with the API a allocator provides. Sometimes this is like talking to a brick wall. You are so convinced that you know /everything/ that you won't try to read, and you certainly won't try to /think/. You asked a question in this thread. I gave you the answer. You reject that because of your incorrect preconceptions. You can go back to being ignorant - I'm done trying to help. If you decide to read what other people post and perhaps even rub a couple of brain cells together to understand the help you are given, let us know. Oh, and /please/ do us the courtesy of learning how to quote properly with attributions.
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-11 16:35 +0200 |
| Message-ID | <s9vsbt$1bl$1@dont-email.me> |
| In reply to | #80311 |
You say: > A C++ standard library implementation can quite happily have > undocumented features that allow std::vector to see how much > memory it has /actually/ een allocated, and let it set "capacity" > a little higher. And this can't be true since the container-implementation has to stick with what an allocator provides. Otherwise it wouldn't be replaceable.
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| From | Manfred <noname@add.invalid> |
|---|---|
| Date | 2021-06-11 17:11 +0200 |
| Message-ID | <s9vuej$12n7$2@gioia.aioe.org> |
| In reply to | #80312 |
On 6/11/2021 4:35 PM, Bonita Montero wrote: > You say: > > ... Her interpretation of proper attribution - lol.
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-11 17:12 +0200 |
| Message-ID | <s9vuhg$hnc$1@dont-email.me> |
| In reply to | #80315 |
>> You say: >> ... > Her interpretation of proper attribution - lol. If there's nothing more to say I'm satisfied. ;-)
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| From | Christian Gollwitzer <auriocus@gmx.de> |
|---|---|
| Date | 2021-06-11 21:15 +0200 |
| Message-ID | <sa0co8$fv1$1@dont-email.me> |
| In reply to | #80312 |
Am 11.06.21 um 16:35 schrieb Bonita Montero: > You say: > > > A C++ standard library implementation can quite happily have > > undocumented features that allow std::vector to see how much > > memory it has /actually/ een allocated, and let it set "capacity" > > a little higher. > > And this can't be true since the container-implementation has > to stick with what an allocator provides. Otherwise it wouldn't > be replaceable. By replaceable you mean that the template for, say, std::vector uses the same code reagrdles off the allocator. Can this not be circumvented by partial specialization on the allocator template argument? Christian
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| From | Bo Persson <bo@bo-persson.se> |
|---|---|
| Date | 2021-06-11 21:58 +0200 |
| Message-ID | <iihtihFda6iU1@mid.individual.net> |
| In reply to | #80304 |
On 2021-06-11 at 13:54, Bonita Montero wrote:
>> They need to be able to work with allocators that provide nothing beyond
>> the specified API. But that does not mean that they can use more
>> information and more methods when dealing with standard library
>> allocators.
>
> The allocator template-parameter is replaceable, so the code has to
> content itself with the API a allocator provides.
So you don't think it is possible to do something like:
if constexpr (is_same_v<_Alloc, std::allocator<_Ty>>)
// use special knowledge
else
// fall-back for user defined allocator
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2021-06-12 04:11 +0200 |
| Message-ID | <sa154r$qb9$5@dont-email.me> |
| In reply to | #80324 |
> So you don't think it is possible to do something like: > if constexpr (is_same_v<_Alloc, std::allocator<_Ty>>) > // use special knowledge > else > // fall-back for user defined allocator Extremly unlikely that such a container-behaviour exists.
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