Chez Scheme for Windows

System summary

Chez Scheme is an efficient implementation of the Scheme language built to follow the Revised^6 Report on the Algorithmic Language Scheme (R6RS). It combines a high-performance compiler and a full runtime environment so programs run as compiled machine code by default, while also supporting interactive and incremental development workflows.

Language abilities and standards compliance

• Hygienic macro expansion for safe, composable syntactic extensions.
• User-defined record types that integrate with the language’s type and equality systems.
• Full support for continuations to express advanced control flow.
• First-class procedures, enabling functions to be passed, returned, and stored like any other value.
• Conforms to the R6RS specification for broad compatibility with standard Scheme programs.

Compiler and runtime behavior

• Support for precompiling source files for faster startup and deployment.
• On-the-fly compilation to permit rapid iterative development without losing performance.
• All code is compiled by default to produce optimized machine code whenever possible.
• A runtime system that handles memory management, Unicode and binary I/O, and other low-level services.

Concurrency, I/O, and foreign-language integration

• Facilities for calling C and other foreign-language routines to reuse existing libraries and system APIs.
• Non-blocking I/O primitives to build responsive applications that handle many simultaneous streams.
• Support for multiple threads so programs can perform parallel or asynchronous work.

Development tools and learning resources

• Profiling utilities to measure and tune program performance.
• A source-level debugger for stepping through Scheme code and inspecting state.
• Comprehensive documentation and examples aimed at both newcomers and experienced Scheme users.

Note about an unrelated item found in the source text

A stray reference to “HP LaserJet P2015d driver (free)” appears in the original line. That is unrelated to Chez Scheme; if you need printer drivers, obtain them directly from the printer vendor’s official support site to ensure you get the correct and secure downloads.