HP Integrity NonStop J-Series - Manual (Page 139)

Existing code using these templates will not provide the number of template arguments
expected by this version of Tools.h++ when used with the Standard C++ Library. The solution
to this problem is to use the macros discussed in in
An Example of Using Templates Without the
Standard Library . Using the macros described there will satisfy the compiler and preserve the
semantics of your existing code.
● The class hierarchy has changed for:
RWTPtrHashSet RWTValHashSet
RWTPtrHashTable RWTValHashTable
RWTPtrOrderedVector RWTValOrderedVector
RWTPtrSortedVector RWTValSortedVector
If you have existing code that makes use of any of the inheritance relationships among the
collection class templates, that code will not compile with this version of Tools.h++ when used
with the Standard C++ Library. There are no inheritance relationships among the standard
library-based implementations of the collection class templates. For example, in the previous
version of Tools.h++,
RWTPtrHashSet inherited from RWTPtrHashTable ,
RWTValOrderedVector inherited from RWTValVector , and RWTValSortedVector inherited
from RWTValOrderedVector. The pointer-based versions of these templates followed a similar
pattern. These relationships do not hold in the new version of Tools.h++. If you have code
based on this inheritance, you will need to modify it .
The most likely place where you will find this problem in your existing code is when building
an
RWTValHashTableIterator from an RWTValHashSet , or an RWTPtrHashTableIterator
from an RWTPtrHashSet . Because the constructor for RWTValHashTableIterator is expecting
a reference to an RWTValHashTable , passing in an RWTValHashSet instead depends on the
inheritance relationship.
The solution to this particular problem is found in the new class RWTPtrHashSetIterator .
Wherever you find code which constructs an RWTValHashTableIterator from an
RWTValHashSet , use an RWTValHashSetIterator instead. Note that RWTValHashSetIterator
is provided whether or not the Standard C++ Library is available, so you can modify your code
now in anticipation of migrating your code to the standard library-based implementations.
● Required less-than semantics for an element type may affect:
RWTPtrDlist RWTValDlist
RWTPtrOrderedVector RWTValOrderedVector
RWTPtrSlist RWTValSlist
RWTPtrSortedVector RWTValSortedVector