Landing: ce964ffb653f

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Project / Subsystem

gcc / libstdc++

Date

2026-07-10

Author

Tomasz Kamiński

Commit

ce964ffb653f7134f93b662a332a9467677066ac

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: libstdc++
patch_id: —
commit_hash: ce964ffb653f7134f93b662a332a9467677066ac
source_type: github
headline: libstdc++: Test has_unique_object_representations with incomplete types.
tldr: Tests `has_unique_object_representations` with incomplete types, addressing LWG4113.
author: Tomasz Kamiński
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • libstdc++
• type traits
• testing
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/ce964ffb653f7134f93b662a332a9467677066ac
date: 2026-07-10T00:00:00.000Z

A new negative test case has been added to libstdc++ to verify that std::has_unique_object_representations correctly handles incomplete types, particularly in array contexts. This addresses the Library Working Group issue LWG4113, which specified disallowing has_unique_object_representations for incomplete arrays.