File: index.doc

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\DOC index

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

\SYNOPSIS
Find the position of an element in a list.

\LIBRARY window

\DESCRIBE
{index p l} finds the position of the first occurrence of an element in the 
list {l} satisfying the predicate {p}.

\FAILURE
{index p l} fails if no element of {l} satisfies p.

\EXAMPLE
{
   # position (\e. e = 2) [1; 2; 3];;
   2 : int 
}

\SEEALSO
el

\ENDDOC