C interoperability

Known automatic-header preparation failure in this preview.

Sn is under heavy development. Reference extracted from this release’s bundled standard library. Public API examples are not an exhaustive compatibility test. Read the matching release guide for tested workflows and limitations. Read the status →

Known broken workflow

Fresh automatic C header preparation in this preview fails during complete type-storage operation capture, including a minimal macro-only header. The compiler reports C Binding Preparation:D0012 and the binding worker reports complete operation capture failed. Do not depend on automatic C header imports in 0.2.0 Preview 1.

What this means

Automatic C interoperability remains a core language feature and ongoing development priority. This particular preserved public preview does not pass the fresh regeneration test. The included snbind belongs to the matching toolchain; its inclusion is not a claim that this workflow passed.

C++ interoperability

Automatic C++ header binding is an intended future feature and is not implemented in this release. The project's goals on the homepage describe the intended 1.0 language.

Native ABI

The bundled standard-library reference includes native ABI attributes and library APIs. Their presence does not prove every external library, target or call shape works in this preview. Report concrete failures through the public issue tracker.

Documentation snapshot: October 24, 2026 About versions ↗