#ifndef _CL_HASH1_H
#define _CL_HASH1_H
-#include "cl_hash.h"
-#include "cl_iterator.h"
+#include "base/hash/cl_hash.h"
+#include "base/cl_iterator.h"
namespace cln {
// Requirements:
// - function bool equal (key1_type,key1_type);
-// - function unsigned long hashcode (key1_type);
-
-#if (defined(__alpha__) && !defined(__GNUC__))
-template <class key1_type, class value_type> struct cl_htentry1;
-#endif
+// - function uintptr_t hashcode (key1_type);
template <class key1_type, class value_type>
struct cl_htentry1 {
const value_type& htvalue () { return val; }
cl_htentry1 (const key1_type& k, const value_type& v)
: key (k), val (v) {}
-#if (defined(__rs6000__) && !defined(__GNUC__))
- cl_htentry1 () {}
-#endif
};
template <class key1_type, class value_type>
struct cl_heap_hashtable_1 : public cl_heap_hashtable <cl_htentry1 <key1_type,value_type> > {
+protected:
+ // Abbreviations.
+ typedef cl_heap_hashtable <cl_htentry1 <key1_type,value_type> > inherited;
+ typedef typename inherited::htxentry htxentry;
+public:
// Allocation.
void* operator new (size_t size) { return malloc_hook(size); }
// Deallocation.
// if it is not NULL.
value_type* get (const key1_type& key)
{
- var long index = _slots[hashcode(key) % _modulus] - 1;
+ var intptr_t index = this->_slots[hashcode(key) % this->_modulus] - 1;
while (index >= 0) {
- if (!(index < _size))
- cl_abort();
- if (equal(key,_entries[index].entry.key))
- return &_entries[index].entry.val;
- index = _entries[index].next - 1;
+ if (!(index < this->_size))
+ throw runtime_exception();
+ if (equal(key,this->_entries[index].entry.key))
+ return &this->_entries[index].entry.val;
+ index = this->_entries[index].next - 1;
}
return NULL;
}
// Store (htset alias puthash).
void put (const key1_type& key, const value_type& val)
{
- var unsigned long hcode = hashcode(key);
+ var uintptr_t hcode = hashcode(key);
// Search whether it is already there.
{
- var long index = _slots[hcode % _modulus] - 1;
+ var intptr_t index = this->_slots[hcode % this->_modulus] - 1;
while (index >= 0) {
- if (!(index < _size))
- cl_abort();
- if (equal(key,_entries[index].entry.key)) {
- _entries[index].entry.val = val;
+ if (!(index < this->_size))
+ throw runtime_exception();
+ if (equal(key,this->_entries[index].entry.key)) {
+ this->_entries[index].entry.val = val;
return;
}
- index = _entries[index].next - 1;
+ index = this->_entries[index].next - 1;
}
}
// Put it into the table.
prepare_store();
- var long hindex = hcode % _modulus; // _modulus may have changed!
- var long index = get_free_index();
- new (&_entries[index].entry) cl_htentry1<key1_type,value_type> (key,val);
- _entries[index].next = _slots[hindex];
- _slots[hindex] = 1+index;
- _count++;
+ var intptr_t hindex = hcode % this->_modulus; // _modulus may have changed!
+ var intptr_t index = this->get_free_index();
+ new (&this->_entries[index].entry) cl_htentry1<key1_type,value_type> (key,val);
+ this->_entries[index].next = this->_slots[hindex];
+ this->_slots[hindex] = 1+index;
+ this->_count++;
}
// Remove (htrem alias remhash).
void remove (const key1_type& key)
{
- var long* _index = &_slots[hashcode(key) % _modulus];
+ var intptr_t* _index = &this->_slots[hashcode(key) % this->_modulus];
while (*_index > 0) {
- var long index = *_index - 1;
- if (!(index < _size))
- cl_abort();
- if (equal(key,_entries[index].entry.key)) {
+ var intptr_t index = *_index - 1;
+ if (!(index < this->_size))
+ throw runtime_exception();
+ if (equal(key,this->_entries[index].entry.key)) {
// Remove _entries[index].entry
- *_index = _entries[index].next;
- _entries[index].~htxentry();
+ *_index = this->_entries[index].next;
+ this->_entries[index].~htxentry();
// The entry is now free.
- put_free_index(index);
+ this->put_free_index(index);
// That's it.
- _count--;
+ this->_count--;
return;
}
- _index = &_entries[index].next;
+ _index = &this->_entries[index].next;
}
}
// Iterate through the table.
// This may change the table's size!
void prepare_store ()
{
- #if !(defined(__sparc__) && !defined(__GNUC__))
- if (_freelist < -1)
+ if (this->_freelist < -1)
return;
// Can we make room?
- if (_garcol_fun(this))
- if (_freelist < -1)
+ if (this->_garcol_fun(this))
+ if (this->_freelist < -1)
return;
// No! Have to grow the hash table.
grow();
- #else
- // workaround Sun C++ 4.1 inline function compiler bug
- if (_freelist >= -1) {
- if (!_garcol_fun(this) || (_freelist >= -1))
- grow();
- }
- #endif
}
void grow ()
{
- var long new_size = _size + (_size >> 1) + 1; // _size*1.5
- var long new_modulus = compute_modulus(new_size);
- var void* new_total_vector = malloc_hook(new_modulus*sizeof(long) + new_size*sizeof(htxentry));
- var long* new_slots = (long*) ((char*)new_total_vector + 0);
- var htxentry* new_entries = (htxentry *) ((char*)new_total_vector + new_modulus*sizeof(long));
- for (var long hi = new_modulus-1; hi >= 0; hi--)
+ var intptr_t new_size = this->_size + (this->_size >> 1) + 1; // _size*1.5
+ var intptr_t new_modulus = inherited::compute_modulus(new_size);
+ var void* new_total_vector = malloc_hook(new_modulus*sizeof(intptr_t) + new_size*sizeof(htxentry));
+ var intptr_t* new_slots = (intptr_t*) ((char*)new_total_vector + 0);
+ var htxentry* new_entries = (htxentry *) ((char*)new_total_vector + new_modulus*sizeof(intptr_t));
+ for (var intptr_t hi = new_modulus-1; hi >= 0; hi--)
new_slots[hi] = 0;
- var long free_list_head = -1;
- for (var long i = new_size-1; i >= 0; i--) {
+ var intptr_t free_list_head = -1;
+ for (var intptr_t i = new_size-1; i >= 0; i--) {
new_entries[i].next = free_list_head;
free_list_head = -2-i;
}
- var htxentry* old_entries = _entries;
- for (var long old_index = 0; old_index < _size; old_index++)
+ var htxentry* old_entries = this->_entries;
+ for (var intptr_t old_index = 0; old_index < this->_size; old_index++)
if (old_entries[old_index].next >= 0) {
var key1_type& key = old_entries[old_index].entry.key;
var value_type& val = old_entries[old_index].entry.val;
- var long hindex = hashcode(key) % new_modulus;
- var long index = -2-free_list_head;
+ var intptr_t hindex = hashcode(key) % new_modulus;
+ var intptr_t index = -2-free_list_head;
free_list_head = new_entries[index].next;
new (&new_entries[index].entry) cl_htentry1<key1_type,value_type> (key,val);
new_entries[index].next = new_slots[hindex];
new_slots[hindex] = 1+index;
old_entries[old_index].~htxentry();
}
- free_hook(_total_vector);
- _modulus = new_modulus;
- _size = new_size;
- _freelist = free_list_head;
- _slots = new_slots;
- _entries = new_entries;
- _total_vector = new_total_vector;
+ free_hook(this->_total_vector);
+ this->_modulus = new_modulus;
+ this->_size = new_size;
+ this->_freelist = free_list_head;
+ this->_slots = new_slots;
+ this->_entries = new_entries;
+ this->_total_vector = new_total_vector;
}
};
git://www.ginac.de / cln.git / blobdiff