HP Integrity NonStop J-Series - Manual (Page 141)

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©Copyright 1996 Rogue Wave Software
Chapter 12: Generic Collection
Classes
Example ❍
Declaring Generic Collection Classes ❍
User-Defined Functions ❍
Tester Functions ■
Apply Functions ■
Generic collection classes are the second major category of collection classes included in
Tools.h++. We call them generic because they use the macros defined in , an early
approximation to parameterized types first described in Stroustrup (1986, p. 209). Generic
collection classes are less manageable than true templates
[17] , but they are portable to any C++
compiler. You can use them even with older compilers.
Most of the generic collection classes use reference-based semantics; that is, they store and
retrieve pointers to other objects, as described in
Chapter 10 ( Storage Methods... ) . With these
classes, as with all Rogue Wave collection classes, you are responsible for the allocation and
deallocation of the objects themselves.
Three vector-based generic collections use value-based semantics: RWGVector(val) ,
RWGOrderedVector(val) , and RWGSortedVector(val) . These classes store the type itself,which
could be a pointer to an object.
The storage and retrieval methods and criteria differ from class to class.