RWTPtrVector(3C++) RWTPtrVector(3C++)
Name
RWTPtrVector<T> - Rogue Wave library class
Synopsis
#include <rw/tpvector.h>
RWTPtrVector<T> vec;
Descripton
Class RWTPtrVector<T> is a simple parameterized vector of pointers to
objects of type T. It is most useful when you know precisely how many
pointers must be held in the collection. If the intention is to "insert"
an unknown number of objects into a collection, then class
RWTPtrOrderedVector<T> may be a better choice. The class T can be of any
type.
Persistence
Isomorphic
Example
#include <rw/tpvector.h>
#include <rw/rwdate.h>
#include <rw/rstream.h>
main() {
RWTPtrVector<RWDate> week(7);
RWDate begin; // Today's date
for (int i=0; i<7; i++)
week[i] = new RWDate(begin++);
for (i=0; i<7; i++)
{
cout << *week[i] << endl;
delete week[i];
}
return 0;
}
Program output:
March 16, 1996
March 17, 1996
March 18, 1996
March 19, 1996
March 20, 1996
March 21, 1996
March 22, 1996
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RWTPtrVector(3C++) RWTPtrVector(3C++)
Public Constructors
RWTPtrVector<T>();
Constructs an empty vector of length zero.
RWTPtrVector<T>(size_t n);
Constructs a vector of length n. The initial values of the elements are
undefined. Hence, they can (and probably will) be garbage.
RWTPtrVector<T>(size_t n, T* ival);
Constructs a vector of length n, with each element pointing to the item
*ival.
RWTPtrVector<T>(const RWTPtrVector& v);
Constructs self as a shallow copy of v. After construction, pointers
held by the two vectors point to the same items.
Public operators
RWTPtrVector<T>&
operator=(const RWTPtrVector<T>& v);
Sets self to a shallow copy of v. Afterwards, the two vectors will have
the same length and pointersheld by the two vectors will point to the
same items.
RWTPtrVector<T>&
operator=(T* p);
Sets all elements in self to point to the item *p.
T*&
operator()(size_t i);
T*
operator()(size_t i) const;
Returns the ith value in the vector. The first variant can be used as an
l-value, the second cannot. The index i must be between zero and the
length of the vector, less one. No bounds checking is performed.
T*&
operator[](size_t i);
T*
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RWTPtrVector(3C++) RWTPtrVector(3C++)
operator[](size_t i) const;
Returns the ith value in the vector. The first variant can be used as an
lvalue, the second cannot. The index i must be between zero and the
length of the vector, less one; or an exception of type TOOL_INDEX will
be thrown.
Public Member Functions
T* const *
data() const;
Returns a pointer to the raw data of the vector. Should be used with
care.
size_t
length() const;
Returns the length of the vector.
void
reshape(size_t N);
Changes the length of the vector to N. If this results in the vector
being lengthened, then the initial value of the additional elements is
undefined.
void
resize(size_t N);
Changes the length of the vector to N. If this results in the vector
being lengthened, then the initial value of the additional elements is
set to nil.
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