llvm / llvm/llvm-project

LWG4259: P1148R0 changed the return values of searching functions of `std::basic_string` on some platforms

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c++26 libc++ lwg-issue
Dominant language
LLVM
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Description

**Link:** https://wg21.link/LWG4259

Contributor guide

Open the contributing guide

Research direction

Start with the linked LWG4259 issue and inspect the std::basic_string searching functions affected by P1148R0. Determine which return values differ across platforms, then verify that the implementation conforms to the clarified specification and add or update coverage for the affected behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
25/100

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