Landing: 781bfbc518c6

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Project / Subsystem

gcc / gcc/modula2

Date

2026-09-11

Author

Gaius Mulley

Commit

781bfbc518c63e7b1431bf733d5a814ac1bf4e21

Source

github

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Breaking

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All attributes

project: gcc
subsystem: gcc/modula2
patch_id: —
commit_hash: 781bfbc518c63e7b1431bf733d5a814ac1bf4e21
source_type: github
headline: Enable complex arc functions in Modula-2 libraries
tldr: Modula-2 now supports complex arc trig functions in its ISO libraries by leveraging GCC's built-in functions.
author: Gaius Mulley
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • modula2
• library
• math
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/781bfbc518c63e7b1431bf733d5a814ac1bf4e21
date: 2026-09-11T00:00:00.000Z

This change enables the complex arc sine, cosine, and tangent functions for the Modula-2 ISO libraries by ensuring proper testing and use of GCC’s built-in trig functions. It addresses an incomplete set of builtin tests and filters these functions based on LONGREAL support, improving the completeness of the Modula-2 math library.