Class IlcRandom

Definition file: ilsolver/random.h

Include file: ilsolver/random.h

Objects of this class produce streams of pseudo-random numbers. You can use objects of this class to create a search with a random element. This class will produce the same stream of random numbers in recompute mode as when it was in compute mode.

For more information, see the member function IloSolver::isInRecomputeMode.

For more information, see IloRandom.

Constructor Summary
`public`	`IlcRandom()`
`public`	`IlcRandom(IlcRandomI * impl)`
`public`	`IlcRandom(IloSolver m, IlcInt seed=0)`

Method Summary
`public void`	`copy(IloRandom rnd)`
`public void`	`copy(IlcRandom rnd)`
`public void`	`copyTo(IloRandom rnd)`
`public IlcFloat`	`getFloat() const`
`public IlcRandomI *`	`getImpl() const`
`public IlcInt`	`getInt(IlcInt n) const`
`public const char *`	`getName() const`
`public IlcAny`	`getObject() const`
`public IloSolver`	`getSolver() const`
`public IloSolverI *`	`getSolverI() const`
`public void`	`operator=(const IlcRandom & h)`
`public void`	`reSeed(IlcInt seed)`
`public void`	`setName(const char * name) const`
`public void`	`setObject(IlcAny object) const`

IlcRandom

public IlcRandom()

This constructor creates an empty handle. You must initialize it before you use it.

IlcRandom

public IlcRandom(IlcRandomI * impl)

This constructor creates a handle object from a pointer to an implementation object.

IlcRandom

public IlcRandom(IloSolver m, IlcInt seed=0)

This constructor creates a random number generator, initially seeded with the seed seed.

Method Detail

copy

public void copy(IloRandom rnd)

This member function copies the state of a Concert Technology random number generator to the invoking one. After the copy, both generators will produce the same stream of pseudo-random numbers.

copy

public void copy(IlcRandom rnd)

This member function copies the state of another random number generator to the invoking one. After the copy, both generators will produce the same stream of pseudo-random numbers.

copyTo

public void copyTo(IloRandom rnd)

This member function copies the state of the invoking generator to a Concert Technology random number generator. After the copy, both generators will produce the same stream of pseudo-random numbers.

getFloat

public IlcFloat getFloat() const

This member function returns a floating point number drawn uniformly from the range [0..1).

getImpl

public IlcRandomI * getImpl() const

This constructor creates an object by copying another one. This constructor creates an object by copying another one. This member function returns a pointer to the implementation object of the invoking handle.

getInt

public IlcInt getInt(IlcInt n) const

This member function returns a integer number drawn uniformly from the range [0..n).

getName

public const char * getName() const

This member function returns the name of the invoking object.

getObject

public IlcAny getObject() const

This member function returns a pointer to the external object associated with the invoking object, if there is such an association. It returns 0 (zero) otherwise.

getSolver

public IloSolver getSolver() const

This member function returns an instance of IloSolver associated with the invoking object.

getSolverI

public IloSolverI * getSolverI() const

This member function returns a pointer to the implementation object of the solver where the invoking object was extracted.

operator=

public void operator=(const IlcRandom & h)

This operator assigns an address to the handle pointer of the invoking object. That address is the location of the implementation object of the provided argument.

reSeed

public void reSeed(IlcInt seed)

This member function reseeds the generator with seed seed.

setName

public void setName(const char * name) const

This member function sets the name of the invoking object to a copy of name. This assignment is a reversible action.

setObject

public void setObject(IlcAny object) const

This member function establishes a link between the invoking object and an external object of which the invoking object might be a data member.