# MCPL

> programming language

**Wikidata**: [Q11764839](https://www.wikidata.org/wiki/Q11764839)  
**Source**: https://4ort.xyz/entity/mcpl

## Summary
MCPL is a typeless programming language based on BCPL, featuring extensive pattern matching and some elements from C. It was developed to provide a simple yet powerful syntax, with an available manual for reference.

## Key Facts
- **Instance of**: Programming language
- **Influenced by**: BCPL
- **Typeless**: MCPL does not enforce strict type systems
- **Pattern matching**: Uses pattern matching similar to ML and Prolog
- **Features from C**: Incorporates certain constructs from the C programming language
- **Manual available**: A PDF manual (mcplman.pdf) is accessible for reference
- **Described at**: [Official MCPL documentation](http://www.cl.cam.ac.uk/~mr10/MCPL.html)
- **Wikipedia availability**: Only available in Polish (pl)

## FAQs
### Q: What is MCPL used for?
A: MCPL is a simple, typeless programming language designed for communicating instructions to a machine. It combines features from BCPL, C, and pattern-matching languages like ML and Prolog.

### Q: Is MCPL still in use today?
A: There is no explicit information on its current usage, but the language remains documented and accessible via its official website.

### Q: Where can I find the MCPL manual?
A: The manual is available as a PDF file (mcplman.pdf) on the [official MCPL documentation page](http://www.cl.cam.ac.uk/~mr10/MCPL.html).

### Q: How does MCPL differ from BCPL?
A: While MCPL is based on BCPL, it introduces pattern matching and some features from C, making it more expressive and flexible.

### Q: Is MCPL open-source?
A: The source material does not specify whether MCPL is open-source, but its documentation is freely available for reference.

## Why It Matters
MCPL serves as a historical and academic example of a typeless programming language that blends elements from BCPL, C, and functional programming paradigms. Its pattern-matching capabilities and simplicity make it a unique contribution to the evolution of programming languages. While not widely adopted today, MCPL remains a documented resource for those interested in early language design and the influence of BCPL on later languages. Its manual provides valuable insights into its syntax and features, ensuring its relevance to researchers and enthusiasts of programming language history.

## Notable For
- **Typeless design**: MCPL avoids strict type systems, offering a simpler approach to programming.
- **Pattern matching**: Its use of pattern matching, similar to ML and Prolog, sets it apart from many other languages of its time.
- **Documented legacy**: The availability of a manual ensures MCPL’s preservation as a historical reference.
- **Influence from BCPL and C**: Combining features from both languages demonstrates its adaptability and innovation.

## Body
### Origins and Influence
MCPL was influenced by BCPL, a typeless language developed at Cambridge University. It retains BCPL’s simplicity while incorporating pattern matching and constructs from C, making it a hybrid language.

### Key Features
- **Pattern Matching**: MCPL uses pattern matching, a feature later popularized by functional languages like ML and Prolog.
- **Typeless**: Unlike many modern languages, MCPL does not enforce strict type systems, allowing for more flexible programming.
- **C Influence**: Some features, such as certain syntax and control structures, are derived from C.

### Documentation and Availability
- The official documentation is hosted at [http://www.cl.cam.ac.uk/~mr10/MCPL.html](http://www.cl.cam.ac.uk/~mr10/MCPL.html).
- A PDF manual (mcplman.pdf) is available for download, providing detailed reference material.
- The language is only documented in Polish on Wikipedia, limiting its broader accessibility.

### Historical Significance
MCPL remains a niche but notable example of an early programming language that blended multiple paradigms. Its manual serves as a valuable resource for understanding its design and implementation.

## References

1. [Source](http://www.cl.cam.ac.uk/~mr10/MCPL.html)