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P0798 Monadic operations for std::optional #112

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jensmaurer opened this issue Jan 26, 2019 · 12 comments · Fixed by cplusplus/draft#5014
Closed

P0798 Monadic operations for std::optional #112

jensmaurer opened this issue Jan 26, 2019 · 12 comments · Fixed by cplusplus/draft#5014
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C++23 Targeted at C++23 IS Ship vehicle: IS LWG Library plenary-approved Papers approved for inclusion in their target vehicle by plenary vote. SG14 Low Latency size - small paper size estimate
Milestone
2021-telecon

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@jensmaurer
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jensmaurer commented Jan 26, 2019 •
edited

P0798R2 Monadic operations for std::optional (Simon Brand)

https://issues.isocpp.org/show_bug.cgi?id=367
@jensmaurer jensmaurer added this to the 2019-02 milestone Jan 26, 2019
@jensmaurer jensmaurer added LEWG Library Evolution SG14 Low Latency labels Jan 26, 2019
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Titus Winters 2018-11-08 04:23:30 UTC
Discussed in San Diego: http://wiki.edg.com/bin/view/Wg21sandiego2018/P0798

Approval vote:
8 No support for void-returning functions (drop out of monads)
3 Return optionalstd::monostate
1 Specialize optional
3 Add a new thing (something like maybe_invoke)

Require passing callable objects as transform_view does. (No function pointers.)
SF F N A SA
3 6 1 0 1

Use: transform, and_then, or_else (aka replace "map" with "transform")

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P0798R3 Monadic operations for std::optional (Simon Brand)

@jensmaurer jensmaurer added this to Wednesday in LEWG in Kona 2019 Feb 6, 2019
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tituswinters commented Feb 21, 2019 •
edited by jensmaurer

LEWG in Kona:
Forward to LWG for C++20.
SF F N A SA
2 10 3 3 1

@tituswinters tituswinters added LWG Library and removed LEWG Library Evolution labels Feb 21, 2019
@jensmaurer jensmaurer removed this from Wednesday in LEWG in Kona 2019 Feb 24, 2019
@jensmaurer jensmaurer modified the milestones: 2019-02, 2019-07 Feb 24, 2019
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wg21bot commented Mar 20, 2019

P0798R4 Monadic operations for std::optional (Simon Brand)

@mclow mclow added the C++20 Targeted at C++20 label Jul 10, 2019
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mclow commented Jul 16, 2019

Discussed in small group on Tuesday in Cologne

@jensmaurer jensmaurer modified the milestones: 2019-07, 2019-11 Aug 23, 2019
@mclow mclow removed the C++20 Targeted at C++20 label Nov 3, 2019
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mclow commented Nov 3, 2019

This was not adopted for C++20. Removing the "C++20" label.

@jensmaurer jensmaurer modified the milestones: 2019-11, 2020-02 Dec 11, 2019
@JeffGarland JeffGarland added the C++23 Targeted at C++23 label Feb 18, 2020
@jensmaurer jensmaurer added IS Ship vehicle: IS and removed C++23 Targeted at C++23 labels Feb 18, 2020
@JeffGarland JeffGarland added the lwg-prereview Needs LWG initial review before full group label Mar 25, 2020
@ben-craig ben-craig added B3 - addition Bucket 3 as described by P0592: material that is not mentioned in P0592 size - small paper size estimate labels Oct 17, 2020
@jensmaurer jensmaurer modified the milestones: 2020-02, 2021-telecon Dec 28, 2020
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wg21bot commented May 21, 2021

P0798R6 Monadic operations for std::optional (Sy Brand)

@JeffGarland JeffGarland added lwg-fullreview Paper is ready for lwg full group review and removed lwg-prereview Needs LWG initial review before full group labels Jun 25, 2021
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LWG held a review of R6 on 2021-06-25 and requested changes.

https://wiki.edg.com/bin/view/Wg21telecons2021/P0798-20210625

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LWG completed review 2021-07-09

poll: Adopt D0798R8 Monadic operations for std::optional for C++23?

F A N
7 0 0

https://wiki.edg.com/bin/view/Wg21telecons2021/P0798-20210709

@JeffGarland JeffGarland added C++23 Targeted at C++23 tentatively-ready-for-plenary Reviewed between meetings; ready for a vote. and removed lwg-fullreview Paper is ready for lwg full group review B3 - addition Bucket 3 as described by P0592: material that is not mentioned in P0592 labels Jul 10, 2021
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jwakely commented Sep 20, 2021

Did P0798R8 get published?

@cor3ntin cor3ntin added plenary-approved Papers approved for inclusion in their target vehicle by plenary vote. and removed tentatively-ready-for-plenary Reviewed between meetings; ready for a vote. labels Oct 4, 2021
@jensmaurer jensmaurer mentioned this issue Oct 8, 2021
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wg21bot commented Oct 26, 2021

P0798R8 Monadic operations for std::optional (Simon Brand)

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wg21bot commented Oct 26, 2021

Adopted 2021-10.

@BowenFu BowenFu mentioned this issue Sep 11, 2022
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C++23 Targeted at C++23 IS Ship vehicle: IS LWG Library plenary-approved Papers approved for inclusion in their target vehicle by plenary vote. SG14 Low Latency size - small paper size estimate
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2021-telecon
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P0798R8 Monadic operations for std::optional cplusplus/draft
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@mclow @ben-craig @jwakely @cor3ntin @JeffGarland @tituswinters @jensmaurer @wg21bot