Collection::Select

Section: ET++ method description (n)
Updated: automatically Fri Mar 1 10:57:30 1991
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NAME

Collection::Select - instance method

TEMPLATE

aCollection = CollPtr Select(BoolFun selectingFunction, void * anArgument)

SPECIFIERS

public virtual

DESCRIPTION

Returns a collection of the same class as the receiver. The returned collection has been added all elements of the receiver for which selectionFunction has evaluated to TRUE.
The order of passing elements to selectionFunction is the same as the order produced by the standard iterator returned by MakeIterator.
See also method Collect. Method is rarely overridden.

ARGUMENTS

BoolFun selectingFunction

The meaning of the arguments of selectingFunction is

(ObjPtr
theReceiver, ObjPtr anElementOfTheReceiver, void *anArgument)

void * anArgument

Argument passed to selectingFunction on every evaluation. It describes the context of the Select invocation. Type and semantics depend on the actual function selectionFunction points to. Select itself does not take care of anArgument.

RETURN ARGUMENT

CollPtr aCollection

FIRST DEFINITION

class Collection

FILES

implementation:: Collection.C

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