reversed
OPL keyword for descending sort order
Purpose
OPL keyword to specify the descending order for a set.
| context |
|---|
| Model files (.mod) |
Syntax
SetTypeModifier: "ordered"
| "sorted"
| "reversed"
Description
Specify
the reversed keyword before a set to indicate
that its number or string elements appear in descending lexicographic
order. The default sort order is ascending.
By default,
if you do not specify the sorted or reversed keyword, the set is ordered, that is, its
elements are considered in their order of creation.
Example
This model
tuple Precedence { int a; string b; };
ordered {int} setInt = { 1,7,2};
ordered setof(Precedence) precedences = { <2,"two">,<1,"One">};
sorted {int} setInt2 = { 1,7,2};
sorted setof(Precedence) precedences2 = { <2,"two">,<1,"One">};
reversed {int} setInt3 = { 1,7,2};
reversed setof(Precedence) precedences3 = { <2,"two">,<1,"One">};
execute
{
writeln(setInt);
writeln(precedences);
writeln(setInt2);
writeln(precedences2);
writeln(setInt3);
writeln(precedences3);
}gives out
{1 7 2}
{<2 "two"> <1 "One">}
{1 2 7}
{<1 "One"> <2 "two">}
{7 2 1}
{<2 "two"> <1 "One">}