Landing: f566fd3c966d

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Project / Subsystem

gcc / fortran

Date

2026-08-15

Author

Mikael Morin

Commit

f566fd3c966da60a1cc7db15e0a17e926325949c

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: fortran
patch_id: —
commit_hash: f566fd3c966da60a1cc7db15e0a17e926325949c
source_type: github
headline: Make IS_CONTIGUOUS true for assumed-rank scalars [PR126895]
tldr: The Fortran intrinsic IS_CONTIGUOUS now correctly returns true for assumed-rank scalars with a zero rank at runtime.
author: Mikael Morin
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • fortran
• intrinsic
• language-feature
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/f566fd3c966da60a1cc7db15e0a17e926325949c
date: 2026-08-15T00:00:00.000Z

The Fortran intrinsic IS_CONTIGUOUS has been updated to correctly handle assumed-rank scalar arguments. If such an argument has a rank of zero at runtime, IS_CONTIGUOUS will now return true. This corrects a bug where the intrinsic incorrectly returned false due to a missing rank check in its span calculation.