Set::Infinite::ArithmeUser3Contributed Perl DocumeSet::Infinite::Arithmetic(3)
NAME
Set::Infinite::Arithmetic - Scalar operations used by quantize() and
offset()
AUTHOR
Flavio Soibelmann Glock - fglock@pucrs.br
%_MODE hash of subs
$a->offset ( value => [1,2], mode => 'offset', unit => 'days' );
$a->offset ( value => [1,2, -5,-4], mode => 'offset', unit => 'days' );
note: if mode = circle, then "-5" counts from end (like a Perl negative
array index).
$a->offset ( value => [1,2], mode => 'offset', unit => 'days', strict => $a );
option 'strict' will return intersection($a,offset). Default: none.
%subs_offset2($object, $offset1, $offset2)
&{ $subs_offset2{$unit} } ($object, $offset1, $offset2);
A hash of functions that return:
($object+$offset1, $object+$offset2)
in $unit context.
Returned $object+$offset1, $object+$offset2 may be scalars or objects.
%Offset_to_value($object, $offset)
%Init_quantizer($object)
$Offset_to_value{$unit} ($object, $offset);
$Init_quantizer{$unit} ($object);
Maps an 'offset value' to a 'value'
A hash of functions that return ( int($object) + $offset ) in $unit
context.
Init_quantizer subroutines must be called before using subs_offset1
functions.
int(object)+offset is a scalar.
Offset_to_value is optimized for calling it multiple times on the same
object, with different offsets. That's why there is a separate
initialization subroutine.
$self->{offset} is created on initialization. It is an index used by
the memoization cache.
perl v5.14.0 2008-06-21 Set::Infinite::Arithmetic(3)
