X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2b5f62a0b2db198609b45dec622a018dae37008e..b321fb12ce729010ee4675e9024217a45a352fd6:/include/wx/hashmap.h

diff --git a/include/wx/hashmap.h b/include/wx/hashmap.h
index f1698d3a11..6b20a0e79f 100644
--- a/include/wx/hashmap.h
+++ b/include/wx/hashmap.h
@@ -12,22 +12,32 @@
 #ifndef _WX_HASHMAP_H_
 #define _WX_HASHMAP_H_
 
-#if defined(__GNUG__) && !defined(__APPLE__)
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma interface "hashmap.h"
 #endif
 
 #include "wx/string.h"
 
+#include <stddef.h>             // for ptrdiff_t
+
+#ifdef __WXWINCE__
+typedef int ptrdiff_t;
+#endif
+
 // private
-struct WXDLLEXPORT _wxHashTable_NodeBase
+struct WXDLLIMPEXP_BASE _wxHashTable_NodeBase
 {
     _wxHashTable_NodeBase() : m_nxt(0) {}
 
     _wxHashTable_NodeBase* m_nxt;
+
+// Cannot do this:
+//  DECLARE_NO_COPY_CLASS(_wxHashTable_NodeBase)
+// without rewriting the macros, which require a public copy constructor.
 };
 
 // private
-class WXDLLEXPORT _wxHashTableBase2
+class WXDLLIMPEXP_BASE _wxHashTableBase2
 {
 public:
     typedef void (*NodeDtor)(_wxHashTable_NodeBase*);
@@ -175,7 +185,7 @@ public: \
     CLASSNAME( size_type sz = 10, const hasher& hfun = hasher(), \
                const key_equal& k_eq = key_equal(), \
                const key_extractor& k_ex = key_extractor() ) \
-        : m_tableBuckets( GetNextPrime( sz ) ), \
+        : m_tableBuckets( GetNextPrime( (unsigned long) sz ) ), \
           m_items( 0 ), \
           m_hasher( hfun ), \
           m_equals( k_eq ), \
@@ -248,7 +258,7 @@ public: \
         delete *node; \
         (*node) = temp; \
         if( SHOULD_SHRINK( m_tableBuckets, m_items ) ) \
-            ResizeTable( GetPreviousPrime( m_tableBuckets ) - 1 ); \
+            ResizeTable( GetPreviousPrime( (unsigned long) m_tableBuckets ) - 1 ); \
         return 1; \
     } \
  \
@@ -272,8 +282,11 @@ protected: \
                 return node; \
             node = node->m_next(); \
         } \
- \
-        node = new Node( value ); \
+ 	return CreateNode( value  , bucket); \
+    }\
+    Node * CreateNode( const value_type& value, size_t bucket ) \
+    {\
+        Node* node = new Node( value ); \
         node->m_nxt = m_table[bucket]; \
         m_table[bucket] = node; \
  \
@@ -284,6 +297,10 @@ protected: \
  \
         return node; \
     } \
+    void CreateNode( const value_type& value ) \
+    {\
+        CreateNode(value, m_hasher( m_getKey(value) ) % m_tableBuckets ); \
+    }\
  \
     /* returns NULL if not found */ \
     Node** GetNodePtr( const const_key_type& key ) const \
@@ -320,7 +337,7 @@ protected: \
  \
     void ResizeTable( size_t newSize ) \
     { \
-        newSize = GetNextPrime( newSize ); \
+        newSize = GetNextPrime( (unsigned long)newSize ); \
         Node** srcTable = m_table; \
         size_t srcBuckets = m_tableBuckets; \
         m_table = (Node**)AllocTable( newSize ); \
@@ -328,7 +345,7 @@ protected: \
  \
         CopyHashTable( (_wxHashTable_NodeBase**)srcTable, srcBuckets, \
                        this, (_wxHashTable_NodeBase**)m_table, \
-                       (BucketFromNode)&GetBucketForNode,\
+                       (BucketFromNode)GetBucketForNode,\
                        (ProcessNode)&DummyProcessNode ); \
         free(srcTable); \
     } \
@@ -340,8 +357,8 @@ protected: \
         CopyHashTable( (_wxHashTable_NodeBase**)ht.m_table, ht.m_tableBuckets,\
                        (_wxHashTableBase2*)this, \
                        (_wxHashTable_NodeBase**)m_table, \
-                       (BucketFromNode)&GetBucketForNode, \
-                       (ProcessNode)&CopyNode ); \
+                       (BucketFromNode)GetBucketForNode, \
+                       (ProcessNode)CopyNode ); \
     } \
 };
 
@@ -357,7 +374,6 @@ public: \
     typedef const VALUE_T const_t2; \
  \
     CLASSNAME( const const_t1& f, const const_t2& s ):first(t1(f)),second(t2(s)) {} \
-    CLASSNAME( const const_t1& f ):first(t1(f)),second(t2()) {} \
  \
     t1 first; \
     t2 second; \
@@ -401,7 +417,7 @@ inline bool grow_lf70( size_t buckets, size_t items )
 //     in the hash table class assignment operator (where they're assigned)
 
 // integer types
-class WXDLLEXPORT wxIntegerHash
+class WXDLLIMPEXP_BASE wxIntegerHash
 {
 public:
     wxIntegerHash() { }
@@ -415,7 +431,7 @@ public:
     wxIntegerHash& operator=(const wxIntegerHash&) { return *this; }
 };
 
-class WXDLLEXPORT wxIntegerEqual
+class WXDLLIMPEXP_BASE wxIntegerEqual
 {
 public:
     wxIntegerEqual() { }
@@ -430,19 +446,19 @@ public:
 };
 
 // pointers
-class WXDLLEXPORT wxPointerHash
+class WXDLLIMPEXP_BASE wxPointerHash
 {
 public:
     wxPointerHash() { }
 
     // TODO: this might not work well on architectures with 64 bit pointers but
     //       32 bit longs, we should use % ULONG_MAX there
-    unsigned long operator()( const void* k ) const { return (unsigned long)k; }
+    unsigned long operator()( const void* k ) const { return (unsigned long)wxPtrToULong(k); }
 
     wxPointerHash& operator=(const wxPointerHash&) { return *this; }
 };
 
-class WXDLLEXPORT wxPointerEqual
+class WXDLLIMPEXP_BASE wxPointerEqual
 {
 public:
     wxPointerEqual() { }
@@ -452,7 +468,7 @@ public:
 };
 
 // wxString, char*, wxChar*
-class WXDLLEXPORT wxStringHash
+class WXDLLIMPEXP_BASE wxStringHash
 {
 public:
     wxStringHash() {}
@@ -470,7 +486,7 @@ public:
     wxStringHash& operator=(const wxStringHash&) { return *this; }
 };
 
-class WXDLLEXPORT wxStringEqual
+class WXDLLIMPEXP_BASE wxStringEqual
 {
 public:
     wxStringEqual() {}
@@ -495,12 +511,14 @@ CLASSEXP CLASSNAME:public CLASSNAME##_wxImplementation_HashTable \
 public: \
     typedef VALUE_T mapped_type; \
  \
-    CLASSNAME( size_type hint = 100, hasher hf = hasher(), key_equal eq = key_equal() ) \
-        : CLASSNAME##_wxImplementation_HashTable( hint, hf, eq, CLASSNAME##_wxImplementation_KeyEx() ) {} \
+    wxEXPLICIT CLASSNAME( size_type hint = 100, hasher hf = hasher(),        \
+                          key_equal eq = key_equal() )                       \
+        : CLASSNAME##_wxImplementation_HashTable( hint, hf, eq,              \
+                                   CLASSNAME##_wxImplementation_KeyEx() ) {} \
  \
     mapped_type& operator[]( const const_key_type& key ) \
     { \
-        return GetOrCreateNode( CLASSNAME##_wxImplementation_Pair( key ) )->m_value.second; \
+        return GetOrCreateNode( CLASSNAME##_wxImplementation_Pair( key, mapped_type() ) )->m_value.second; \
     } \
  \
     const_iterator find( const const_key_type& key ) const \
@@ -523,7 +541,7 @@ public: \
     /* count() == 0 | 1 */ \
     size_type count( const const_key_type& key ) \
         { return GetNode( key ) ? 1 : 0; } \
-};
+}
 
 // these macros are to be used in the user code
 #define WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME) \
@@ -531,24 +549,50 @@ public: \
 
 #define WX_DECLARE_STRING_HASH_MAP( VALUE_T, CLASSNAME ) \
     _WX_DECLARE_HASH_MAP( wxString, VALUE_T, wxStringHash, wxStringEqual, \
-                          CLASSNAME, class );
+                          CLASSNAME, class )
 
 #define WX_DECLARE_VOIDPTR_HASH_MAP( VALUE_T, CLASSNAME ) \
     _WX_DECLARE_HASH_MAP( void*, VALUE_T, wxPointerHash, wxPointerEqual, \
-                          CLASSNAME, class );
+                          CLASSNAME, class )
 
 // and these do exactly the same thing but should be used inside the
 // library
+#define WX_DECLARE_HASH_MAP_WITH_DECL( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME, DECL) \
+    _WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME, DECL )
+
 #define WX_DECLARE_EXPORTED_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME) \
-    _WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME, class WXDLLEXPORT )
+    WX_DECLARE_HASH_MAP_WITH_DECL( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, \
+                                   CLASSNAME, class WXDLLEXPORT )
 
-#define WX_DECLARE_EXPORTED_STRING_HASH_MAP( VALUE_T, CLASSNAME ) \
+#define WX_DECLARE_STRING_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, DECL ) \
     _WX_DECLARE_HASH_MAP( wxString, VALUE_T, wxStringHash, wxStringEqual, \
-                          CLASSNAME, class WXDLLEXPORT );
+                          CLASSNAME, DECL )
 
-#define WX_DECLARE_EXPORTED_VOIDPTR_HASH_MAP( VALUE_T, CLASSNAME ) \
+#define WX_DECLARE_EXPORTED_STRING_HASH_MAP( VALUE_T, CLASSNAME ) \
+    WX_DECLARE_STRING_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, \
+                                          class WXDLLEXPORT )
+
+#define WX_DECLARE_VOIDPTR_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, DECL ) \
     _WX_DECLARE_HASH_MAP( void*, VALUE_T, wxPointerHash, wxPointerEqual, \
-                          CLASSNAME, class WXDLLEXPORT );
+                          CLASSNAME, DECL )
+
+#define WX_DECLARE_EXPORTED_VOIDPTR_HASH_MAP( VALUE_T, CLASSNAME ) \
+    WX_DECLARE_VOIDPTR_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, \
+                                           class WXDLLEXPORT )
+
+// delete all hash elements
+//
+// NB: the class declaration of the hash elements must be visible from the
+//     place where you use this macro, otherwise the proper destructor may not
+//     be called (a decent compiler should give a warning about it, but don't
+//     count on it)!
+#define WX_CLEAR_HASH_MAP(type, hashmap)                                     \
+    {                                                                        \
+        type::iterator it, en;                                               \
+        for( it = (hashmap).begin(), en = (hashmap).end(); it != en; ++it )  \
+            delete it->second;                                               \
+        (hashmap).clear();                                                   \
+    }
 
 #endif // _WX_HASHMAP_H_