boostorg / boostorg/hana

Feature Request: SFINAE-friendliness

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#424 4 comments 0 reactions 0 assignees View on GitHub
Dominant language
C++
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Description

Firstly, thank you for hana. It's simply fantastic.

Currently, `unpack`, `transform`, along with the callable objects returned from `partial`, `reverse_partial` are not SFINAE-friendly. Is this behavior intentional?

If not, would a PR to provide this functionality be welcome?

Contributor guide

Open the contributing guide

Research direction

Start by reviewing the SFINAE behavior of unpack, transform, partial, and reverse_partial, which are the entry points named in the issue. Determine whether making these APIs SFINAE-friendly is intended and define the expected behavior; done means the requested functionality is implemented and its behavior is covered by tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
20/100

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