File: can.doc

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\DOC can

\TYPE {can : ('a -> 'b) -> 'a -> bool}

\SYNOPSIS
Tests for failure.

\DESCRIBE
{can f x} evaluates to {true} if the application of {f} to {x} succeeds.
It evaluates to {false} if the application fails with a {Failure _} exception.

\FAILURE
Never fails.

\EXAMPLE
{
  # can hd [1;2];;
  val it : bool = true
  # can hd [];;
  val it : bool = false
}

\SEEALSO
check.

\ENDDOC