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[wxWidgets.git] / include / wx / hashmap.h

diff --git a/include/wx/hashmap.h b/include/wx/hashmap.h
index ae3667ce41a5f84777cee6397b9ceefbb41681c4..41aaccb230facd6b1fa590b9ddf15adf7ba72dab 100644 (file)
--- a/include/wx/hashmap.h
+++ b/include/wx/hashmap.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        hashmap.h
+// Name:        wx/hashmap.h

 // Purpose:     wxHashMap class
 // Author:      Mattia Barbon
 // Modified by:
 // Purpose:     wxHashMap class
 // Author:      Mattia Barbon
 // Modified by:


@@ -34,7 +34,7 @@
 #endif
 
 #define _WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME, CLASSEXP ) \
 #endif
 
 #define _WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME, CLASSEXP ) \

-    typedef WX_HASH_MAP_NAMESPACE::hash_map< KEY_T, VALUE_T, HASH_T, KEY_EQ_T > CLASSNAME;
+    typedef WX_HASH_MAP_NAMESPACE::hash_map< KEY_T, VALUE_T, HASH_T, KEY_EQ_T > CLASSNAME

 
 #else // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
 
 
 #else // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
 


@@ -202,6 +202,7 @@ public: \
     { \
     public: \
         const_iterator() : Iterator() {} \
     { \
     public: \
         const_iterator() : Iterator() {} \

+        const_iterator(iterator i) : Iterator(i) {} \

         const_iterator( Node* node, const Self* ht ) \
             : Iterator( node, (Self*)ht ) {} \
         const_iterator& operator++() { PlusPlus();return *this; } \
         const_iterator( Node* node, const Self* ht ) \
             : Iterator( node, (Self*)ht ) {} \
         const_iterator& operator++() { PlusPlus();return *this; } \


@@ -337,23 +338,26 @@ protected: \
     /* returns NULL if not found */ \
     Node** GetNodePtr( const const_key_type& key ) const \
     { \
     /* returns NULL if not found */ \
     Node** GetNodePtr( const const_key_type& key ) const \
     { \

-        Node** node = &m_table[m_hasher( key ) % m_tableBuckets]; \
+        size_t bucket = m_hasher( key ) % m_tableBuckets; \
+        Node** node = &m_table[bucket]; \

  \
         while( *node ) \
         { \
             if( m_equals( m_getKey( (*node)->m_value ), key ) ) \
                 return node; \
  \
         while( *node ) \
         { \
             if( m_equals( m_getKey( (*node)->m_value ), key ) ) \
                 return node; \

+            /* Tell the compiler to not do any strict-aliasing assumptions with a void cast? Can we make such a runtime guarantee? */ \

             node = (Node**)&(*node)->m_nxt; \
         } \
  \
             node = (Node**)&(*node)->m_nxt; \
         } \
  \

-        return 0; \
+        return NULL; \

     } \
  \
     /* returns NULL if not found */ \
     /* expressing it in terms of GetNodePtr is 5-8% slower :-( */ \
     Node* GetNode( const const_key_type& key ) const \
     { \
     } \
  \
     /* returns NULL if not found */ \
     /* expressing it in terms of GetNodePtr is 5-8% slower :-( */ \
     Node* GetNode( const const_key_type& key ) const \
     { \

-        Node* node = m_table[m_hasher( key ) % m_tableBuckets]; \
+        size_t bucket = m_hasher( key ) % m_tableBuckets; \
+        Node* node = m_table[bucket]; \

  \
         while( node ) \
         { \
  \
         while( node ) \
         { \


@@ -460,11 +464,21 @@ class WXDLLIMPEXP_BASE wxIntegerHash
     WX_HASH_MAP_NAMESPACE::hash<short> shortHash;
     WX_HASH_MAP_NAMESPACE::hash<unsigned short> ushortHash;
 
     WX_HASH_MAP_NAMESPACE::hash<short> shortHash;
     WX_HASH_MAP_NAMESPACE::hash<unsigned short> ushortHash;
 

+#if defined wxLongLong_t && !defined wxLongLongIsLong
+    // hash<wxLongLong_t> ought to work but doesn't on some compilers
+    #if (!defined SIZEOF_LONG_LONG && SIZEOF_LONG == 4) \
+        || (defined SIZEOF_LONG_LONG && SIZEOF_LONG_LONG == SIZEOF_LONG * 2)

     size_t longlongHash( wxLongLong_t x ) const
     {
         return longHash( wx_truncate_cast(long, x) ) ^
                longHash( wx_truncate_cast(long, x >> (sizeof(long) * 8)) );
     }
     size_t longlongHash( wxLongLong_t x ) const
     {
         return longHash( wx_truncate_cast(long, x) ) ^
                longHash( wx_truncate_cast(long, x >> (sizeof(long) * 8)) );
     }

+    #elif defined SIZEOF_LONG_LONG && SIZEOF_LONG_LONG == SIZEOF_LONG
+    WX_HASH_MAP_NAMESPACE::hash<long> longlongHash;
+    #else
+    WX_HASH_MAP_NAMESPACE::hash<wxLongLong_t> longlongHash;
+    #endif
+#endif

 
 public:
     wxIntegerHash() { }
 
 public:
     wxIntegerHash() { }


@@ -635,7 +649,10 @@ public: \
  \
     /* count() == 0 | 1 */ \
     size_type count( const const_key_type& key ) \
  \
     /* count() == 0 | 1 */ \
     size_type count( const const_key_type& key ) \

-        { return GetNode( key ) ? 1 : 0; } \
+    { \
+        /* explicit cast needed to suppress CodeWarrior warnings */ \
+        return (size_type)(GetNode( key ) ? 1 : 0); \
+    } \

 }
 
 #endif // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
 }
 
 #endif // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)


@@ -699,4 +716,3 @@ WX_DECLARE_HASH_MAP_WITH_DECL( long, long, wxIntegerHash, wxIntegerEqual,
 
 
 #endif // _WX_HASHMAP_H_
 
 
 #endif // _WX_HASHMAP_H_

-