What is SML code?
Standard Meta Language (SML) is a type-safe programming language that encapsulates numerous innovative ideas in programming language plan or design. It is a statically composed language, with an extensible type framework.
How do I test my SML code?
To test ML functions, go to the sml window. Enter the command use “filename. sml”; to load and compile the file you’ve just edited. You can interactively test each function as you add it.
What is SML written in?
Standard ML
Aside from its runtime system, which is written in C, SML/NJ is written in Standard ML. It was originally developed jointly by Bell Laboratories and Princeton University.
Is ML a functional language?
ML (Meta Language) is a general-purpose functional programming language.
What is MAP SML?
The map function takes a function F and a list [a1,a2,…,an], and produces the list [F(a1), F(a2),…, F(an)]. That is, it applies F to each element of the list and returns the list of resulting values.
How do I run SML?
To start the SML interpreter at the terminal, type “sml” and press enter. If the left/right cursor keys don’t work, run “rlwrap sml” instead. Using rlwrap also provides a history; use the up/down arrows to access previously entered lines. To exit SML, press CTRL+D (or CTRL+Z under Windows).
What is Standard ML used for?
It is popular among compiler writers and programming language researchers, as well as in the development of theorem provers . Standard ML is a modern dialect of ML, the language used in the Logic for Computable Functions (LCF) theorem-proving project.
Why doesn’t Standard ML use the minus sign?
For reasons best known to Robin Milner, Standard ML does not use the unary minus sign used in every other known language (except APL). Instead, Standard ML uses the tilde as a minus sign, as in ~1 or ~ (n+1). The tilde is in fact an ordinary function and may be treated as such.
What is a record in Standard ML?
In addition to tuples, Standard ML has records with named fields. A record is notated by a set of key-value pairs, separated by commas, and enclosed in curly braces. The order of the pairs doesn’t matter. Unfortunately, records come with some special rules and special syntax that can cause pain for beginners.
What is the difference between (*) and * comments in ML?
(* Comments in Standard ML begin with (* and end with *). Comments can be nested which means that all (* tags must end with a *) tag. This comment, for example, contains two nested comments.