| d | ||
| debug | Provides functions which help with debugging and testing software. | |
| i | ||
| impure | Provides functions which break the declarative semantics of Mars. | |
| iofuncs | I/O versions of higher-order functions. | |
| n | ||
| native | Provides functions which offer a low-level interface for the purpose of marshalling data between Mars and foreign (native) code. | |
| p | ||
| prelude | Common standard library functions. | |
| s | ||
| set | An unordered set data type and operations. | |
| struct | Provides functions to help read and write fields of structs and unions when interfacing with native code. | |
| u | ||
| unittest | Provides functions to facilitate testing of user code. | |
| urllib | Functions for construction and processing of URLs. |