MSVC 5 fix.

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

diff --git a/include/wx/hashmap.h b/include/wx/hashmap.h
index 1715c403f84624650bc9a6789587e171eac5184b..6b20a0e79f84045696d45a6881197f2c171031fb 100644 (file)
--- a/include/wx/hashmap.h
+++ b/include/wx/hashmap.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

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

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


@@ -12,22 +12,32 @@
 #ifndef _WX_HASHMAP_H_
 #define _WX_HASHMAP_H_
 
 #ifndef _WX_HASHMAP_H_
 #define _WX_HASHMAP_H_
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma interface "hashmap.h"
 #endif
 
 #pragma interface "hashmap.h"
 #endif
 

-#include <wx/string.h>
+#include "wx/string.h"
+
+#include <stddef.h>             // for ptrdiff_t
+
+#ifdef __WXWINCE__
+typedef int ptrdiff_t;
+#endif

 
 // private
 
 // private

-struct WXDLLEXPORT _wxHashTable_NodeBase
+struct WXDLLIMPEXP_BASE _wxHashTable_NodeBase

 {
     _wxHashTable_NodeBase() : m_nxt(0) {}
 
     _wxHashTable_NodeBase* m_nxt;
 {
     _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
 };
 
 // private

-class WXDLLEXPORT _wxHashTableBase2
+class WXDLLIMPEXP_BASE _wxHashTableBase2

 {
 public:
     typedef void (*NodeDtor)(_wxHashTable_NodeBase*);
 {
 public:
     typedef void (*NodeDtor)(_wxHashTable_NodeBase*);


@@ -62,9 +72,9 @@ protected:
                                _wxHashTable_NodeBase** dstTable,
                                BucketFromNode func, ProcessNode proc );
 
                                _wxHashTable_NodeBase** dstTable,
                                BucketFromNode func, ProcessNode proc );
 

-    static void** AllocTable( size_t size )
+    static void** AllocTable( size_t sz )

     {
     {

-        return (void **)calloc(size, sizeof(void*));
+        return (void **)calloc(sz, sizeof(void*));

     }
 };
 
     }
 };
 


@@ -172,10 +182,10 @@ public: \
         const_pointer operator ->() const { return &(m_node->m_value); } \
     }; \
  \
         const_pointer operator ->() const { return &(m_node->m_value); } \
     }; \
  \

-    CLASSNAME( size_type size = 10, const hasher& hfun = hasher(), \
+    CLASSNAME( size_type sz = 10, const hasher& hfun = hasher(), \

                const key_equal& k_eq = key_equal(), \
                const key_extractor& k_ex = key_extractor() ) \
                const key_equal& k_eq = key_equal(), \
                const key_extractor& k_ex = key_extractor() ) \

-        : m_tableBuckets( GetNextPrime( size ) ), \
+        : m_tableBuckets( GetNextPrime( (unsigned long) sz ) ), \

           m_items( 0 ), \
           m_hasher( hfun ), \
           m_equals( k_eq ), \
           m_items( 0 ), \
           m_hasher( hfun ), \
           m_equals( k_eq ), \


@@ -218,7 +228,12 @@ public: \
  \
     /* removes all elements from the hash table, but does not */ \
     /* shrink it ( perhaps it should ) */ \
  \
     /* removes all elements from the hash table, but does not */ \
     /* shrink it ( perhaps it should ) */ \

-    void clear() { DeleteNodes( m_tableBuckets, (_wxHashTable_NodeBase**)m_table, DeleteNode ); } \
+    void clear() \
+    { \
+        DeleteNodes( m_tableBuckets, (_wxHashTable_NodeBase**)m_table, \
+                     DeleteNode ); \
+        m_items = 0; \
+    } \

  \
     size_type size() const { return m_items; } \
     size_type max_size() const { return size_type(-1); } \
  \
     size_type size() const { return m_items; } \
     size_type max_size() const { return size_type(-1); } \


@@ -243,7 +258,7 @@ public: \
         delete *node; \
         (*node) = temp; \
         if( SHOULD_SHRINK( m_tableBuckets, m_items ) ) \
         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; \
     } \
  \
         return 1; \
     } \
  \


@@ -267,8 +282,11 @@ protected: \
                 return node; \
             node = node->m_next(); \
         } \
                 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; \
  \
         node->m_nxt = m_table[bucket]; \
         m_table[bucket] = node; \
  \


@@ -279,6 +297,10 @@ protected: \
  \
         return node; \
     } \
  \
         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 \
  \
     /* returns NULL if not found */ \
     Node** GetNodePtr( const const_key_type& key ) const \


@@ -315,7 +337,7 @@ protected: \
  \
     void ResizeTable( size_t newSize ) \
     { \
  \
     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 ); \
         Node** srcTable = m_table; \
         size_t srcBuckets = m_tableBuckets; \
         m_table = (Node**)AllocTable( newSize ); \


@@ -323,7 +345,7 @@ protected: \
  \
         CopyHashTable( (_wxHashTable_NodeBase**)srcTable, srcBuckets, \
                        this, (_wxHashTable_NodeBase**)m_table, \
  \
         CopyHashTable( (_wxHashTable_NodeBase**)srcTable, srcBuckets, \
                        this, (_wxHashTable_NodeBase**)m_table, \

-                       (BucketFromNode)&GetBucketForNode,\
+                       (BucketFromNode)GetBucketForNode,\

                        (ProcessNode)&DummyProcessNode ); \
         free(srcTable); \
     } \
                        (ProcessNode)&DummyProcessNode ); \
         free(srcTable); \
     } \


@@ -335,8 +357,8 @@ protected: \
         CopyHashTable( (_wxHashTable_NodeBase**)ht.m_table, ht.m_tableBuckets,\
                        (_wxHashTableBase2*)this, \
                        (_wxHashTable_NodeBase**)m_table, \
         CopyHashTable( (_wxHashTable_NodeBase**)ht.m_table, ht.m_tableBuckets,\
                        (_wxHashTableBase2*)this, \
                        (_wxHashTable_NodeBase**)m_table, \

-                       (BucketFromNode)&GetBucketForNode, \
-                       (ProcessNode)&CopyNode ); \
+                       (BucketFromNode)GetBucketForNode, \
+                       (ProcessNode)CopyNode ); \

     } \
 };
 
     } \
 };
 


@@ -352,7 +374,6 @@ public: \
     typedef const VALUE_T const_t2; \
  \
     CLASSNAME( const const_t1& f, const const_t2& s ):first(t1(f)),second(t2(s)) {} \
     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; \
  \
     t1 first; \
     t2 second; \


@@ -363,9 +384,15 @@ public: \
 #define _WX_DECLARE_HASH_MAP_KEY_EX( KEY_T, PAIR_T, CLASSNAME, CLASSEXP ) \
 CLASSEXP CLASSNAME \
 { \
 #define _WX_DECLARE_HASH_MAP_KEY_EX( KEY_T, PAIR_T, CLASSNAME, CLASSEXP ) \
 CLASSEXP CLASSNAME \
 { \

+    typedef KEY_T key_type; \
+    typedef PAIR_T pair_type; \
+    typedef const key_type const_key_type; \
+    typedef const pair_type const_pair_type; \
+    typedef const_key_type& const_key_reference; \
+    typedef const_pair_type& const_pair_reference; \

 public: \
     CLASSNAME() { } \
 public: \
     CLASSNAME() { } \

-    KEY_T operator()( PAIR_T pair ) const { return pair.first; } \
+    const_key_reference operator()( const_pair_reference pair ) const { return pair.first; }\

     \
     /* the dummy assignment operator is needed to suppress compiler */ \
     /* warnings from hash table class' operator=(): gcc complains about */ \
     \
     /* the dummy assignment operator is needed to suppress compiler */ \
     /* warnings from hash table class' operator=(): gcc complains about */ \


@@ -390,7 +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
 //     in the hash table class assignment operator (where they're assigned)
 
 // integer types

-class WXDLLEXPORT wxIntegerHash
+class WXDLLIMPEXP_BASE wxIntegerHash

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


@@ -404,7 +431,7 @@ public:
     wxIntegerHash& operator=(const wxIntegerHash&) { return *this; }
 };
 
     wxIntegerHash& operator=(const wxIntegerHash&) { return *this; }
 };
 

-class WXDLLEXPORT wxIntegerEqual
+class WXDLLIMPEXP_BASE wxIntegerEqual

 {
 public:
     wxIntegerEqual() { }
 {
 public:
     wxIntegerEqual() { }


@@ -419,19 +446,19 @@ public:
 };
 
 // pointers
 };
 
 // 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
 {
 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; }
 };
 
 
     wxPointerHash& operator=(const wxPointerHash&) { return *this; }
 };
 

-class WXDLLEXPORT wxPointerEqual
+class WXDLLIMPEXP_BASE wxPointerEqual

 {
 public:
     wxPointerEqual() { }
 {
 public:
     wxPointerEqual() { }


@@ -441,7 +468,7 @@ public:
 };
 
 // wxString, char*, wxChar*
 };
 
 // wxString, char*, wxChar*

-class WXDLLEXPORT wxStringHash
+class WXDLLIMPEXP_BASE wxStringHash

 {
 public:
     wxStringHash() {}
 {
 public:
     wxStringHash() {}


@@ -459,7 +486,7 @@ public:
     wxStringHash& operator=(const wxStringHash&) { return *this; }
 };
 
     wxStringHash& operator=(const wxStringHash&) { return *this; }
 };
 

-class WXDLLEXPORT wxStringEqual
+class WXDLLIMPEXP_BASE wxStringEqual

 {
 public:
     wxStringEqual() {}
 {
 public:
     wxStringEqual() {}


@@ -484,12 +511,14 @@ CLASSEXP CLASSNAME:public CLASSNAME##_wxImplementation_HashTable \
 public: \
     typedef VALUE_T mapped_type; \
  \
 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 ) \
     { \
  \
     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 \
     } \
  \
     const_iterator find( const const_key_type& key ) const \


@@ -512,7 +541,7 @@ public: \
     /* count() == 0 | 1 */ \
     size_type count( const const_key_type& key ) \
         { return GetNode( key ) ? 1 : 0; } \
     /* 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) \
 
 // 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) \


@@ -520,24 +549,50 @@ public: \
 
 #define WX_DECLARE_STRING_HASH_MAP( VALUE_T, CLASSNAME ) \
     _WX_DECLARE_HASH_MAP( wxString, VALUE_T, wxStringHash, wxStringEqual, \
 
 #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, \
 
 #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
 
 // 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) \
 #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, \
     _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, \
     _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_
 
 
 #endif // _WX_HASHMAP_H_