# R<sup>7</sup>RS Libraries

- Cyclone runtime
- [`scheme base`](api/scheme/base.md)
- [`scheme case-lambda`](api/scheme/case-lambda.md)
- [`scheme char`](api/scheme/char.md)
- [`scheme cxr`](api/scheme/cxr.md)
- [`scheme eval`](api/scheme/eval.md)
- [`scheme file`](api/scheme/file.md)
- [`scheme inexact`](api/scheme/inexact.md)
- [`scheme lazy`](api/scheme/lazy.md)
- [`scheme load`](api/scheme/load.md)
- [`scheme process-context`](api/scheme/process-context.md)
- [`scheme read`](api/scheme/read.md)
- [`scheme time`](api/scheme/time.md)
- [`scheme write`](api/scheme/write.md)

# SRFI Support

Cyclone supports the following [Scheme Requests for Implementation (SRFI)](http://srfi.schemers.org/) libraries:

- [`receive`: Binding to multiple values](http://srfi.schemers.org/srfi-8/srfi-8.html) - Included as part of `scheme base`.
- [`srfi 18`](api/srfi/18.md) - [Multithreading support](http://srfi.schemers.org/srfi-18/srfi-18.html)

# Cyclone-specific

These libraries are used by the Cyclone compiler itself, and are subject to change:

- `scheme cyclone cgen`
- `scheme cyclone common`
- `scheme cyclone libraries`
- `scheme cyclone macros`
- `scheme cyclone transforms`
- `scheme cyclone util`