Maybe add (mp_)list_invoke

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
cpp
Domain
tooling

Research direction

Start with the proposed list_invoke signature and its stated behavior, then compare it with the existing MP11 list utilities and the mp_iota_c and mp_value entry points mentioned here. Done means settling the API name and behavior for both type and value lists, with tests covering the demonstrated invocation pattern.

Written by the indexing model from the issue text.

Description

template<class L, class F> auto list_invoke( F&& f );

// Returns: f( T{}... ), where T... are the elements of L, or mp_value<A>{}..., for a value list

Motivation: https://twitter.com/ericniebler/status/1671986987396415491

list_invoke<mp_iota_c<5>>( [&](auto... I){ ... } );

Name TBD. mp_with_list?

Dominant language
C++
Stars
291
Forks
97
PR merge metrics
No merged PRs in 30d

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