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# ordered_sum(+List, ?Sum)

The list elements are ordered and their sum is Sum
*List*
- List of integers or domain variables
*Sum*
- Variable or integer

## Description

This constraint is declaratively equivalent to:
ordered_sum(List, Sum) :-
ordered(=<, List),
sum(List) #= Sum.

However, additional propagation is performed.
Any input variables which do not already have finite bounds will
be given default bounds of -10000000 to 10000000.

## See Also

ordered / 2, sumlist / 2