Tools.h++ Manual

23-20 104011 Tandem Computers Incorporated
23
Public member functions type * append( type * a);
Adds an item to the end of the collection and returns it. Returns nil if the
insertion was unsuccessful.
void apply(void (*ap)( type *, void*),
void* );
Visits all the items in the collection in order, from first to last, calling the user-
provided function pointed to by ap for each item. This function should have
prototype:
void yourApplyFunction ( type * c, void*);
and can perform any operation on the object at address c . The last argument is
useful for passing data to the apply function.
type *& at(size_t i);
const type* at(size_t i) const;
Returns a pointer to the i ’th item in the collection. The first variant can be
used as an lvalue, the second cannot. The index i must be between zero and
the number of items in the collection less one, or an exception of type
TOOL_INDEX will be thrown.
void clear();
Removes all items in the collection.
RWBoolean contains( yourTester t, const
void* d) const;
Returns TRUE if the collection contains an item for which the user-defined
function pointed to by t finds a match with d .
RWBoolean containsReference(const type * e)
const;
Returns TRUE if the collection contains an item with the address e .
size_t entries() const;
Returns the number of items in the collection.
type * find( yourTester t, const void* d)
const;
Returns the first item in the collection for which the user-provided function
pointed to by t finds a match with d , or nil if no item is found.