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inplace_stop_callback is missing the template-deduction guide

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
45/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
cpp

Research direction

Locate the stdexec::inplace_stop_callback implementation and compare its deduction behavior with the C++ standard section linked in the issue. Verify the provided construction example, then add the missing deduction support and confirm that the example compiles.

Written by the indexing model from the issue text.

Description

The inplace_stop_callback class is specified to have a class-template-argument-deduction guide so that you can write:

std::inplace_stop_callback cb{st, [&]() noexcept { /* some logic */ }};

However, the stdexec::inplace_stop_callback implementation is missing the CTAD declaration.

See https://eel.is/c++draft/stopcallback.inplace.general

Dominant language
C++
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Forks
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Avg merge
2d 16h
Merged PRs (30d)
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