source file of the Flower Library
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-
#ifndef PARRAY_HH
#define PARRAY_HH
-#include "array.hh"
+#include "std-vector.hh"
-/**
- an array of pointers.
+using namespace std;
- TODO
- should init to 0.
- */
template<class T>
-class Link_array : private Array<void *>
+class Link_array : public vector<T *>
{
- static default_compare (T *const& p1, T *const&p2) {
- /* can't do p1 -p2, since T might be an incomplete type */
- if (p1 < p2)
- return -1 ;
- if (p2 < p1)
- return 1;
- return 0;
- }
- Link_array (Array<void*> v)
- :Array<void*> (v)
- {
- }
-public:
- Link_array()
- {}
- Link_array (Link_array<T> const &src)
- : Array<void*> (src)
- {
- }
- /// access element
- T *elem (int i) const
- {
- return elem_ref (i);
- }
- T *&elem_ref (int i) const
- {
- return (T*&) Array<void*>::elem_ref (i);
- }
-
- /// access element
- T* &operator[] (int i)
- {
- return (T*&) Array<void*>::elem_ref (i);
- }
- /// access element
- T *const operator[] (int i) const
- {
- return (T *const) Array<void*>::elem (i);
- }
- T *pop ()
- {
- return (T*) Array<void*>::pop ();
- }
- void insert (T *t, int i)
- {
- Array<void*>::insert (t, i);
- }
- void push (T* t)
- {
- Array<void*>::push (t);
- }
- /// return last entry
- T* top (int j=0) const
- {
- return (T*) Array<void*>::top (j);
- }
- T *& top (int i=0)
- {
- return (T*&) Array<void*>::top (i);
- }
- void substitute (T *old, T*new_l)
- {
- int i;
- while ((i = find_i (old)) >=0)
- if (new_l)
- elem_ref (i) =new_l;
- else
- del (i);
- }
- void unordered_substitute (T* old, T * new_l)
- {
- int i;
- while ((i = find_i (old)) >=0)
- if (new_l)
- elem_ref (i) =new_l;
- else {
- unordered_del (i);
- }
-
- }
- void default_sort() {
- sort (default_compare);
- }
- // quicksort.
- void sort (int (*compare)(T *const&,T *const&),
- int lower = -1, int upper = -1);
-
- void uniq() {
- Link_array<T> l_arr;
- for (int i=0; i < size(); i++)
- if (!i || elem (i-1) != elem (i))
- l_arr.push (elem (i));
- *this = l_arr;
- }
- Array<void*>::del;
- Array<void*>::unordered_del;
- Array<void*>::size;
- Array<void*>::clear;
- Array<void*>::set_size;
- Array<void*>::empty;
- Array<void*>::reverse;
- T * get (int i)
- {
- return (T*) Array<void*>::get (i);
- }
- Link_array<T>
- slice(int l,int u)
- {
- return Array<void*>::slice (l,u);
- }
- void concat (Link_array<T> const &a2)
- {
- Array<void*>::concat (a2);
- }
- int find_i (T const * t) const {
- for (int i=0; i < size(); i++)
- if (elem (i) == t)
- return i;
- return -1;
- }
- T *find_l (T const *t) const
- {
- int i = find_i (t);
- if (i >= 0)
- return elem (i);
- else
- return 0;
- }
};
-template<class T, class V>
-Link_array<T>
-typecast_array (Link_array<V> const &a, T * /* dummy */ )
-{
- Link_array<T> ret;
- for (int i=a.size (); i-- ; )
- ret.push (dynamic_cast<T*> (a[i])); // ugh?
- return ret;
-}
-
-
-
-template<class T> inline void
-Link_array<T>::sort (int (*compare)(T *const&,T *const&),
- int lower = -1, int upper = -1)
-{
- if (lower < 0)
- {
- lower = 0 ;
- upper = size () - 1;
- }
- if (lower >= upper)
- return;
- swap (lower, (lower+upper)/2);
- int last = lower;
- for (int i= lower +1; i <= upper; i++)
- if (compare (elem (i), elem(lower)) < 0)
- swap (++last,i);
- swap (lower, last);
- sort (compare, lower, last-1);
- sort (compare, last+1, upper);
-}
-
#endif // PARRAY_HH