Delisle, Thierry2018-01-182018-01-182018-01-182017-12-19http://hdl.handle.net/10012/12888C∀ is a modern, non-object-oriented extension of the C programming language. This thesis serves as a definition and an implementation for the concurrency and parallelism C∀ offers. These features are created from scratch due to the lack of concurrency in ISO C. Lightweight threads are introduced into the language. In addition, monitors are introduced as a high-level tool for control-flow based synchronization and mutual-exclusion. The main contributions of this thesis are two-fold: it extends the existing semantics of monitors introduce by [37] to handle monitors in groups and also details the engineering effort needed to introduce these features as core language features. Indeed, these features are added with respect to expectations of C programmers, and integrate with the C∀ type-system and other language features.enprogramming languageconcurrency and parallelismthreadingC∀Master Thesis