Documentation for routine sum assembled from the following pages:
Class: Any §
From Any
(Any) method sum §
Defined as:
method sum() is nodalIf the content is iterable, it returns the sum of the values after pulling them one by one, or 0 if the list is empty.
(3,2,1).sum; # OUTPUT: «6» say 3.sum; # OUTPUT: «3» It will fail if any of the elements cannot be converted to a number.
Class: List §
From List
(List) routine sum §
Defined as:
sub sum( )method sum(List:)Returns the sum of all elements in the list or 0 if the list is empty. Throws an exception if an element can not be coerced into Numeric.
say (1, 3, pi).sum; # OUTPUT: «7.14159265358979» say (1, "0xff").sum; # OUTPUT: «256» say sum(0b1111, 5); # OUTPUT: «20»If the list includes a Junction, the result will accordingly be a Junction:
say ( 1|2, 3).sum; # OUTPUT: «any(4, 5)» When called on native integer arrays, it is also possible to specify a :wrap named parameter. This will add the values as native integers, wrapping around if they exceed the size of a native integer. If you are sure you will not exceed that value, or if you don't mind, using :wrap will make the calculation about 20x as fast.
my int = ^1_000_000;say .sum(:wrap); # OUTPUT: «499999500000» Class: Range §
From Range
(Range) method sum §
multi method sum(--> Numeric)Returns the sum of all elements in the Range. Throws X::Str::Numeric if an element can not be coerced into Numeric.
(1..10).sum # 55