Landing: b71686db1fdc
Project / Subsystem
gcc / libstdc++
Date
2026-07-26
Author
Patrick Palka
Commit
b71686db1fdc589da34f80460f054407c1f54990
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- libstdc++
- patch_id
- —
- commit_hash
- b71686db1fdc589da34f80460f054407c1f54990
- source_type
- github
- headline
- libstdc++: Robustify flat_map::insert_range move counter test
- tldr
- Makes a libstdc++ test for `flat_map::insert_range` more reliable by ensuring sufficient capacity.
- author
- Patrick Palka
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • libstdc++
- • test
- • container
- • flat_map
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-26T00:00:00.000Z
This commit improves the robustness of a test case for libstdc++’s flat_map::insert_range method. The test, which verifies the move counter, was found to be unreliable due to potential reallocations in the underlying std::vector during insert_range operations. The fix ensures that the test reserves enough capacity upfront to prevent these reallocations, thus guaranteeing accurate move counter measurements.