ILOG OPL Development Studio Language Reference Manual

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Lfloat 19for 198function 202if 198infinity 19, 92inter 102max 94maxint 92min 94null 259ordered 134piecewise 95prod 94return 202setof 31SheetConnection 67SheetRead 68special 192static 202string 20sum 94symdiff 102this 192, 246, 248tuple 27union 102var 200with 73labeled assertions 116Mlabeled constraints 111last, OPL function 102lazy instantiation 76limitationsdata types 29literals 185logical constraintsdefinition and extraction 126for CP 130logical expressions 126logical operators 235loopsin ILOG Script 198max, OPL keyword 94maxint, OPL keyword 18, 92memory allocation and managementand data initialization 53memory consumptionand multidimensional arrays 25methodsbuilt-in, for objects 249defining for objects 245for arrays 241for Booleans 234for dates 255for functions 261for numbers 215for strings 226268I L O G O P L D E V E L O P M E N T S T U D I O L A N G U A G ER E F E R E N C E M A N U A L
NOfor the null value 259for the undefined value 260min, OPL keyword 94modelsbuilding 12connecting to databases 56, 58conventions 12efficiency 111readability 137, 138multidimensional arrays 25next, OPL function 102nextc, OPL function 102nonlinear constraints 123nonlinear expressions in logical constraints127not, logical constraint 126Not-A-Number 213null value 259null, ILOG Script keyword 259numbers 207automatic conversion to 214methods 215numeric constants 217numeric functions 216numeric operators 218objective functionand decision variables 80Pobjects 243constructor 247octal numbers 212one-dimensional arrays 24operatorsaggregate 94assigning a value 190for ILOG Script dates 258for strings 229logical 235numeric 218precedence 186shorthand 190special 193syntax 195or, logical constraint 126ord, OPL function 102orderfor processing script blocks 76ordered sets 31special ordered sets, not supported 31ordered, OPL keyword 134overflowand integer expressions 92piecewise linear functions 95discontinuous 97piecewise, OPL keyword 95preprocessingI L O G O P L D E V E L O P M E N T S T U D I O L A N G U A G ER E F E R E N C E M A N U A L269
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CopyrightCOPYRIGHT NOTICECopyright
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C O N T E N T STable of contentsLan
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Language Reference ManualThis manua
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OPL, the modeling languagePresents
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ModelsDescribes the overall structu
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}ctMaxTotal:Gas + Chloride
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Data typesDescribes basic data type
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Basic data typesDescribes integers,
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FloatsShows how to declare floats i
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Data structuresDescribes how the ba
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The range float declarationA range
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{Edge} Edges = {, , };int a[Edges]
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TuplesData structures in OPL can al
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In Declaring a tuple using a set of
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SetsDefinitionSets are non-indexed
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Sorted and ordered setsBy default,
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The data shows that the team includ
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Data sourcesDescribes data and data
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Data initializationDefines internal
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{Ship} shipData = ...;and assume th
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* .dat file */a = #[“Monday”: 1
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}}the same can be expressed with th
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Initializing tuplesYou initialize t
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Initializing setsYou can initialize
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As generic setsOPL supports generic
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Initialization and memory allocatio
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Database initializationDescribes ho
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Supported databasesSupported databa
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Reading from a databaseIn OPL, data
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DBconnection db("oracle9", connecti
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Note: OPL supports the same element
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Spreadsheet Input/OutputDescribes h
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Connection to a spreadsheetThe spre
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♦Sets of tuples: The data has to
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Data consistencyDefines the purpose
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Data membership consistencyThe keyw
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AssertionsOPL provides assertions t
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execute{writeln(s2);s1.add(3);write
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Decision typesVariables in an OPL a
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tuple Route {City orig;City dest;}{
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Dynamic collection of elements into
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The all syntaxThen, the all syntax
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Appending arraysYou can also concat
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ExpressionsDescribes data and decis
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Data and decision variable identifi
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(condition)?thenExpr : elseExprwher
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Piecewise-linear functionsPiecewise
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eakpoint[k-1] < ship[o][d] 0; 0}(1,
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Figure The discontinuous piecewise
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x == y;signx == piecewise{0->0; 2->
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Functions over setsFunction Descrip
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ConstraintsSpecifies the constraint
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Using constraintsExplains how to ap
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Conditional constraintsIf-then-else
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Constraint labelsExplains why label
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Labeling constraintsTo label a cons
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subject to {forall( p in Products ,
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Limitations to constraint labelingN
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Compatibility between constraint na
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Types of constraintsDescribes const
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Discrete constraintsDiscrete constr
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Implicit constraintsImplicit constr
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Symbol=>!===MeaningImplyDifferent f
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Constraints available in constraint
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♦Interval grouping constraint: al
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Formal parametersDescribes basic fo
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{forall(i in 1..8)forall(j in 1..8:
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Tuples of parametersOPL allows tupl
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int array[i in set1] = ((sum(j in s
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SchedulingDescribes how to model sc
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IntroductionILOG OPL Development St
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Piecewise linear and stepwise funct
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I L O G O P L D E V E L O P M E N T
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e equal to 1. For a fixed interval
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ExamplesFor examples of using inter
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Precedence constraints between inte
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A logical constraint between interv
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Important:The piecewise linear func
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♦prev(p, a, b) states that if bot
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Cumulative functionsIn scheduling p
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Constraints on cumul function expre
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Syntax and examplesFor the syntax a
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♦That everywhere over a given fix
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in state s. If algn e is true, it m
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NotationsThe main notations used th
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ILOG Script for OPLDescribes the st
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Language structurePresents the stru
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SyntaxWhat composes a scripting sta
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Compound statementsA compound state
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IdentifiersIdentifiers are used to
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Expressions in ILOG ScriptExpressio
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LiteralsLiterals can represent the
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Syntax of different types of expres
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Property accessThere are two ways o
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Function callsSyntactic shorthandSy
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Special operatorsSpecial operator s
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Other operatorsOther operators are
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StatementsA statement can be a cond
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SyntaxEffectfor (var i=0; i < a.len
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Outside a function definitionAt the
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Default valuesDefault value syntaxS
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Built-in values and functionsPresen
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NumbersNumber representations and f
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IntroductionNumbers can be expresse
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Hexadecimal numbersA hexadecimal nu
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Special numbersThere are three spec
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Number methodsThere is only one num
Page 217 and 218: Numeric constantsThe following nume
Page 219 and 220: Syntax~ xx > yx >>> yEffectBitwise
Page 221 and 222: ILOG Script stringsString represent
Page 223 and 224: Examples of string literals using e
Page 225 and 226: String propertiesThere is a single,
Page 227 and 228: Syntaxstring.toUpperCase()EffectExa
Page 229 and 230: String operatorsString operatorsSyn
Page 231 and 232: ILOG Script BooleansBoolean represe
Page 233 and 234: Automatic conversion to BooleanWhen
Page 235 and 236: Logical operatorsThe following Bool
Page 237 and 238: ILOG Script arraysArray representat
Page 239 and 240: Array constructorThe array construc
Page 241 and 242: Array methodsArray methodsSyntaxarr
Page 243 and 244: ObjectsObject representation and fu
Page 245 and 246: Defining methodsSince a method is r
Page 247 and 248: Object constructorObject constructo
Page 249 and 250: Built-in methodsThere is only one o
Page 251 and 252: DatesDate representation and functi
Page 253 and 254: Date constructorThe date constructo
Page 255 and 256: Date methodsDate methodsSyntaxdate.
Page 257 and 258: Date functionsDate functionsSyntaxD
Page 259 and 260: The null valueThe null value is a s
Page 261 and 262: ILOG Script functionsIn ILOG Script
Page 263 and 264: I N D E XIndexABabs, OPL function 9
Page 265 and 266: limitations in tuples 29ranges 22se
Page 267: GHIgeneric sets 51, 137groundbreakp
Page 271 and 272: sparsityand multidimensional arrays
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ILOG OPL Development Studio Language Reference Manual

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