Landing: b207851b2d1b

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Project / Subsystem

gcc / fortran

Date

2026-07-12

Author

Paul Thomas

Commit

b207851b2d1b26b3b9ee7b8cfab637ee531acfc1

Source

github

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Breaking

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project: gcc
subsystem: fortran
patch_id: —
commit_hash: b207851b2d1b26b3b9ee7b8cfab637ee531acfc1
source_type: github
headline: Fortran: Error on coarray ultimate components in ALLOCATE
tldr: Fortran compiler now correctly errors on coarray ultimate components in ALLOCATE statements.
author: Paul Thomas
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • fortran
• coarray
• compiler error
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/b207851b2d1b26b3b9ee7b8cfab637ee531acfc1
date: 2026-07-12T00:00:00.000Z

The Fortran compiler has been updated to enforce constraints on coarray ultimate components within ALLOCATE statements. Previously, the compiler allowed these constructs, but they are now correctly flagged as errors, aligning with Fortran standards. This change also standardizes error messages for better consistency.