Landing: d22b7d0195db

Project / Subsystem

gcc / libstdc++

Date

2026-09-10

Author

François Dumont

Commit

d22b7d0195dbe3ebe52fd71f43f42aac956d3e5e

Source

github

Perf win

No

Breaking

No

All attributes

project
gcc
subsystem
libstdc++
patch_id
—
commit_hash
d22b7d0195dbe3ebe52fd71f43f42aac956d3e5e
source_type
github
headline
libstdc++: Simplify constant-evaluated checks using 'consteval'.
tldr
Debug version of inplace_vector now uses 'if consteval' instead of std::is_constant_evaluated().
author
François Dumont
outcome
committed
performance_win
false
breaking_change
false
series_id
—
series_parts
[]
tags
  • • libstdc++
  • • c++20
  • • compiler
discussion_id_link
—
bugzilla_pr
—
date
2026-09-10T00:00:00.000Z

In the debug implementation of std::inplace_vector, checks for constant evaluation have been simplified. The code now uses the if consteval syntax, a C++20 feature, directly, replacing calls to std::is_constant_evaluated(). This change applies to emplace, insert, and erase operations.