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Tasks:
Text Generation
Modalities:
Text
Sub-tasks:
language-modeling
Languages:
English
Size:
100K - 1M
License:
File size: 775 Bytes
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\DOC |=>
\TYPE {(|=>) : 'a -> 'b -> ('a, 'b) func}
\SYNOPSIS
Gives a one-point finite partial function.
\DESCRIBE
This is one of a suite of operations on finite partial functions, type
{('a,'b)func}. These may sometimes be preferable to ordinary functions since
they permit more operations such as equality comparison, extraction of domain
etc. The call {x |=> y} gives a finite partial function that maps {x} to {y}
and is undefined for all arguments other than {x}.
\EXAMPLE
{
# let f = (1 |=> 2);;
val f : (int, int) func = <func>
# apply f 1;;
val it : int = 2
# apply f 2;;
Exception: Failure "apply".
}
\SEEALSO
|->, apply, applyd, choose, combine, defined, dom, foldl, foldr,
graph, is_undefined, mapf, ran, tryapplyd, undefine, undefined.
\ENDDOC
|