Operators
Presents OPL and IBM ILOG Script operators and their order of precedence.
Traditional relational operators ==, !=, >=, >, <, and <= are used with:
integer expressions to construct integer relations
float expressions to construct float relations
string expressions to construct string relations.
Relations can be combined by using the traditional logical operators:
! (negation)
|| (disjunction)
&& (conjunction)
OPL operators
The OPL operators are listed here in a decreasing order of precedence.
| Class | Operator |
|---|---|
| Aggregate | all |
| Binary1 | ^ |
| Aggregate | prod inter |
| Binary | * / div % mod inter |
| Aggregate | sum max min union |
| Unary | + - ! |
| Binary | + - union diff symdiff |
| Range | .. |
| Membership | in not in |
| Relational | == <= >= < > != (<=.<=) (>=.>=) |
| Logical | && and |
| Logical | || or |
| Logical | => |
| Ternary | ?: |
| 1 ^ means power in OPL and bitwise xor in Script | |
Example
range r=1..2;
int x[r]=[2,3];
// The priority of sum is greater than the priority of +
int s=sum(i in r) x[i] + 1;
execute
{
writeln("s = ",s);
}Result
s = 6Script operators
The IBM ILOG Script operators are listed here in a decreasing order of precedence.
| Precedence | Operators | Operation performed |
|---|---|---|
| 1 | [] . new | |
| 2 | () [] . | function call |
| 3 | ++ -- | postfix increment, postfix decrement |
| 4 | delete void typeof | delete, undefined return, return type |
| ++ -- + - | prefix increment, prefix decrement, unary plus, unary minus | |
| ~ ! | bitwise not, logical not | |
| 5 | * / % | multiplication, division, remainder |
| 6 | + - | addition, subtraction |
| 7 | << >> >>> | bitwise left shift, signed right shift, unsigned right shift |
| 8 | < <= > >= | less than, less than or equal to, greater than, greater than or equal to |
| instanceof | call HasInstance method | |
| in | call HasProperty method | |
| 9 | == != === !== | is equal, is not equal, is strictly equal, is strictly not equal |
| 10 | & | bitwise and |
| 111 | ^ | bitwise xor |
| 12 | | | bitwise or |
| 13 | && | logical and |
| 14 | || | logical or |
| 15 | ?: | conditional expression |
| 16 | = | Assignment |
| *= /= %= += -= <<= >>= >>>= &= ^= |= | Assignment with ... | |
| 17 | , | Sequential evaluation |
| 1 ^ means power in OPL and bitwise xor in Script | ||