File: first.doc

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\DOC first

\TYPE {first : (int -> * list -> * list)}

\SYNOPSIS
Returns the first n elements of a list.

\LIBRARY window

\DESCRIBE
{first n l} returns the first {n} elements of the list {l}.
If {l} is less than {n} long, then the whole of {l} is returned.

\FAILURE
Fails if given a negative length.

\EXAMPLE
{
   #first 5 [1;2;3;4;5;6;7;8;9;10];;
   [1; 2; 3; 4; 5] : int list
}

\SEEALSO
last

\ENDDOC