hashtable: fixup style
authorBrian Norris <banorris@uci.edu>
Thu, 3 Jan 2013 22:29:16 +0000 (14:29 -0800)
committerBrian Norris <banorris@uci.edu>
Thu, 3 Jan 2013 22:30:50 +0000 (14:30 -0800)
hashtable.h

index d5c69ccba8456ad4930dcbdee93f3f5d229caca3..6bf813520f505bdb6799f9e2e619510df6e1b7ed 100644 (file)
@@ -48,7 +48,7 @@ struct hashlistnode {
  * @tparam _free   Provide your own 'free' for the table, or default to
  *                 snapshotting.
  */
-template<typename _Key, typename _Val, typename _KeyInt, int _Shift=0, void * (* _malloc)(size_t)=snapshot_malloc, void * (* _calloc)(size_t, size_t)=snapshot_calloc, void (*_free)(void *)=snapshot_free>
+template<typename _Key, typename _Val, typename _KeyInt, int _Shift = 0, void * (* _malloc)(size_t) = snapshot_malloc, void * (* _calloc)(size_t, size_t) = snapshot_calloc, void (*_free)(void *) = snapshot_free>
        class HashTable {
  public:
        /**
@@ -58,14 +58,14 @@ template<typename _Key, typename _Val, typename _KeyInt, int _Shift=0, void * (*
         * @param factor Sets the percentage full before the hashtable is
         * resized. Default ratio 0.5.
         */
-       HashTable(unsigned int initialcapacity=1024, double factor=0.5) {
+       HashTable(unsigned int initialcapacity = 1024, double factor = 0.5) {
                // Allocate space for the hash table
-               table = (struct hashlistnode<_Key,_Val> *) _calloc(initialcapacity, sizeof(struct hashlistnode<_Key,_Val>));
+               table = (struct hashlistnode<_Key, _Val> *)_calloc(initialcapacity, sizeof(struct hashlistnode<_Key, _Val>));
                loadfactor = factor;
                capacity = initialcapacity;
                capacitymask = initialcapacity - 1;
 
-               threshold = (unsigned int) (initialcapacity*loadfactor);
+               threshold = (unsigned int)(initialcapacity * loadfactor);
                size = 0; // Initial number of elements in the hash
        }
 
@@ -96,8 +96,8 @@ template<typename _Key, typename _Val, typename _KeyInt, int _Shift=0, void * (*
 
        /** Reset the table to its initial state. */
        void reset() {
-               memset(table, 0, capacity*sizeof(struct hashlistnode<_Key, _Val>));
-               size=0;
+               memset(table, 0, capacity * sizeof(struct hashlistnode<_Key, _Val>));
+               size = 0;
        }
 
        /** Put a key value pair into the table. */
@@ -105,96 +105,96 @@ template<typename _Key, typename _Val, typename _KeyInt, int _Shift=0, void * (*
                if (size > threshold)
                        resize(capacity << 1);
 
-               struct hashlistnode<_Key,_Val> *search;
+               struct hashlistnode<_Key, _Val> *search;
 
-               unsigned int index=((_KeyInt)key)>>_Shift;
+               unsigned int index = ((_KeyInt)key) >> _Shift;
                do {
-                       index=index&capacitymask;
+                       index = index & capacitymask;
                        search = &table[index];
-                       if (search->key==key) {
-                               search->val=val;
+                       if (search->key == key) {
+                               search->val = val;
                                return;
                        }
                        index++;
-               } while(search->key);
-               
-               search->key=key;
-               search->val=val;
+               } while (search->key);
+
+               search->key = key;
+               search->val = val;
                size++;
        }
 
        /** Lookup the corresponding value for the given key. */
        _Val get(_Key key) {
-               struct hashlistnode<_Key,_Val> *search;
+               struct hashlistnode<_Key, _Val> *search;
 
-               unsigned int index=((_KeyInt)key)>>_Shift;
+               unsigned int index = ((_KeyInt)key) >> _Shift;
                do {
-                       index=index&capacitymask;
+                       index = index&capacitymask;
                        search = &table[index];
-                       if (search->key==key) {
+                       if (search->key == key) {
                                return search->val;
                        }
                        index++;
-               } while(search->key);
+               } while (search->key);
                return (_Val) 0;
        }
 
        /** Check whether the table contains a value for the given key. */
        bool contains(_Key key) {
-               struct hashlistnode<_Key,_Val> *search;
+               struct hashlistnode<_Key, _Val> *search;
 
-               unsigned int index=((_KeyInt)key)>>_Shift;
+               unsigned int index = ((_KeyInt)key) >> _Shift;
                do {
-                       index=index&capacitymask;
+                       index = index & capacitymask;
                        search = &table[index];
-                       if (search->key==key) {
+                       if (search->key == key) {
                                return true;
                        }
                        index++;
-               } while(search->key);
+               } while (search->key);
                return false;
        }
 
        /** Resize the table. */
        void resize(unsigned int newsize) {
-               struct hashlistnode<_Key,_Val> * oldtable = table;
-               struct hashlistnode<_Key,_Val> * newtable;
+               struct hashlistnode<_Key, _Val> *oldtable = table;
+               struct hashlistnode<_Key, _Val> *newtable;
                unsigned int oldcapacity = capacity;
 
-               if((newtable = (struct hashlistnode<_Key,_Val> *) _calloc(newsize, sizeof(struct hashlistnode<_Key,_Val>))) == NULL) {
+               if ((newtable = (struct hashlistnode<_Key, _Val> *) _calloc(newsize, sizeof(struct hashlistnode<_Key, _Val>))) == NULL) {
                        model_print("Calloc error %s %d\n", __FILE__, __LINE__);
                        exit(-1);
                }
-               
+
                table = newtable;          //Update the global hashtable upon resize()
                capacity = newsize;
                capacitymask = newsize - 1;
 
                threshold = (unsigned int) (newsize * loadfactor);
 
-               struct hashlistnode<_Key, _Val> * bin = &oldtable[0];
-               struct hashlistnode<_Key, _Val> * lastbin = &oldtable[oldcapacity];
-               for(; bin < lastbin; bin++) {
-                       _Key key=bin->key;
+               struct hashlistnode<_Key, _Val> *bin = &oldtable[0];
+               struct hashlistnode<_Key, _Val> *lastbin = &oldtable[oldcapacity];
+               for (; bin < lastbin; bin++) {
+                       _Key key = bin->key;
+
+                       struct hashlistnode<_Key, _Val> *search;
 
-                       struct hashlistnode<_Key,_Val> *search;
-                       
-                       unsigned int index=((_KeyInt)key)>>_Shift;
+                       unsigned int index = ((_KeyInt)key) >> _Shift;
                        do {
-                               index=index&capacitymask;
+                               index = index & capacitymask;
                                search = &table[index];
                                index++;
-                       } while(search->key);
+                       } while (search->key);
 
-                       search->key=key;
-                       search->val=bin->val;
+                       search->key = key;
+                       search->val = bin->val;
                }
 
                _free(oldtable);            //Free the memory of the old hash table
        }
 
  private:
-       struct hashlistnode<_Key,_Val> *table;
+       struct hashlistnode<_Key, _Val> *table;
        unsigned int capacity;
        unsigned int size;
        unsigned int capacitymask;