#ai
4 posts tagged #ai.
228 Qt model edge cases, and the ones my models failed
I wrote down 228 edge cases for the observable Qt models and tested each one. 170 work, 22 are refused on purpose, 27 were defects that are now fixed, and 9 are still pinned. The defects included an editor that writes an empty value back, and a model that survives its container with stale rows.
Regenerating a Qt container library from a spec, with and without moc
A reader wrote their observable Qt containers down as a spec an AI agent can regenerate from. Two fresh agents built it, one with classic moc and one with typed signals through reflect-moc. Both pass all 17 acceptance entries, the moc version builds with MSVC, and the spec itself has a row lookup that costs 193 microseconds per removal at 10,000 entries.
GCC will decline AI-generated contributions above the legal threshold
The GCC Steering Committee has adopted a policy declining any legally significant contribution that includes or is derived from LLM-generated content. Test cases are an explicit exception, small contributions are allowed if clearly marked, and using a model to find bugs or review patches stays permitted. Commits that had AI help need an Assisted-by tag, and only humans may submit or sign off.
How the C++ community is actually using AI in 2026
The question in the C++ world has shifted from whether to use LLMs to how to use them well. A roundup of where that conversation is right now: Jason Turner's three-part C++ Weekly arc on getting useful code out of AI, CppCast on teaching C++ in the LLM era, and Herb Sutter asking the uncomfortable question about agents doing harm.