X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/872051d89bd098d1e6052fabc07174e67296a35f..303f0be79e904523d3b2e912ab1a5c7ab812d2b6:/include/wx/hashmap.h?ds=sidebyside

diff --git a/include/wx/hashmap.h b/include/wx/hashmap.h
index 3bf91c8a2f..f1b72a80f8 100644
--- a/include/wx/hashmap.h
+++ b/include/wx/hashmap.h
@@ -15,12 +15,34 @@
 #include "wx/string.h"
 #include "wx/wxcrt.h"
 
+// In wxUSE_STD_CONTAINERS build we prefer to use the standard hash map class
+// but it can be either in non-standard hash_map header (old g++ and some other
+// STL implementations) or in C++0x standard unordered_map which can in turn be
+// available either in std::tr1 or std namespace itself
+//
+// To summarize: if std::unordered_map is available use it, otherwise use tr1
+// and finally fall back to non-standard hash_map
+
 #if (defined(HAVE_EXT_HASH_MAP) || defined(HAVE_HASH_MAP)) \
     && (defined(HAVE_GNU_CXX_HASH_MAP) || defined(HAVE_STD_HASH_MAP))
     #define HAVE_STL_HASH_MAP
 #endif
 
-#if wxUSE_STL && defined(HAVE_STL_HASH_MAP)
+#if wxUSE_STD_CONTAINERS && \
+    (defined(HAVE_STD_UNORDERED_MAP) || defined(HAVE_TR1_UNORDERED_MAP))
+
+#if defined(HAVE_STD_UNORDERED_MAP)
+    #include <unordered_map>
+    #define WX_HASH_MAP_NAMESPACE std
+#elif defined(HAVE_TR1_UNORDERED_MAP)
+    #include <tr1/unordered_map>
+    #define WX_HASH_MAP_NAMESPACE std::tr1
+#endif
+
+#define _WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME, CLASSEXP ) \
+    typedef WX_HASH_MAP_NAMESPACE::unordered_map< KEY_T, VALUE_T, HASH_T, KEY_EQ_T > CLASSNAME
+
+#elif wxUSE_STD_CONTAINERS && defined(HAVE_STL_HASH_MAP)
 
 #if defined(HAVE_EXT_HASH_MAP)
     #include <ext/hash_map>
@@ -37,8 +59,9 @@
 #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
 
-#else // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+#else // !wxUSE_STD_CONTAINERS || no std::{hash,unordered}_map class available
 
+#define wxNEEDS_WX_HASH_MAP
 
 #ifdef __WXWINCE__
 typedef int ptrdiff_t;
@@ -54,7 +77,7 @@ struct WXDLLIMPEXP_BASE _wxHashTable_NodeBase
     _wxHashTable_NodeBase* m_next;
 
 // Cannot do this:
-//  DECLARE_NO_COPY_CLASS(_wxHashTable_NodeBase)
+//  wxDECLARE_NO_COPY_CLASS(_wxHashTable_NodeBase);
 // without rewriting the macros, which require a public copy constructor.
 };
 
@@ -104,7 +127,9 @@ protected:
     }
 };
 
-#define _WX_DECLARE_HASHTABLE( VALUE_T, KEY_T, HASH_T, KEY_EX_T, KEY_EQ_T, CLASSNAME, CLASSEXP, SHOULD_GROW, SHOULD_SHRINK ) \
+#define _WX_DECLARE_HASHTABLE( VALUE_T, KEY_T, HASH_T, KEY_EX_T, KEY_EQ_T,\
+                               PTROPERATOR, CLASSNAME, CLASSEXP, \
+                               SHOULD_GROW, SHOULD_SHRINK ) \
 CLASSEXP CLASSNAME : protected _wxHashTableBase2 \
 { \
 public: \
@@ -138,7 +163,7 @@ public: \
     public: \
         Node( const value_type& value ) \
             : m_value( value ) {} \
-        Node* next() { return wx_static_cast(Node*, m_next); } \
+        Node* next() { return static_cast<Node*>(m_next); } \
  \
         value_type m_value; \
     }; \
@@ -146,7 +171,7 @@ public: \
 protected: \
     static void DeleteNode( _wxHashTable_NodeBase* node ) \
     { \
-        delete wx_static_cast(Node*, node); \
+        delete static_cast<Node*>(node); \
     } \
 public: \
     /*                  */ \
@@ -160,7 +185,7 @@ public: \
  \
         Iterator() : m_node(NULL), m_ht(NULL) {} \
         Iterator( Node* node, const Self* ht ) \
-            : m_node(node), m_ht(wx_const_cast(Self*, ht)) {} \
+            : m_node(node), m_ht(const_cast<Self*>(ht)) {} \
         bool operator ==( const Iterator& it ) const \
             { return m_node == it.m_node; } \
         bool operator !=( const Iterator& it ) const \
@@ -172,7 +197,7 @@ public: \
             for( size_type i = bucket + 1; i < m_ht->m_tableBuckets; ++i ) \
             { \
                 if( m_ht->m_table[i] ) \
-                    return wx_static_cast(Node*, m_ht->m_table[i]); \
+                    return static_cast<Node*>(m_ht->m_table[i]); \
             } \
             return NULL; \
         } \
@@ -194,7 +219,7 @@ public: \
         iterator& operator++() { PlusPlus(); return *this; } \
         iterator operator++(int) { iterator it=*this;PlusPlus();return it; } \
         reference operator *() const { return m_node->m_value; } \
-        pointer operator ->() const { return &(m_node->m_value); } \
+        PTROPERATOR(pointer) \
     }; \
  \
     CLASSEXP const_iterator : public Iterator \
@@ -203,11 +228,11 @@ public: \
         const_iterator() : Iterator() {} \
         const_iterator(iterator i) : Iterator(i) {} \
         const_iterator( Node* node, const Self* ht ) \
-            : Iterator(node, wx_const_cast(Self*, ht)) {} \
+            : Iterator(node, const_cast<Self*>(ht)) {} \
         const_iterator& operator++() { PlusPlus();return *this; } \
         const_iterator operator++(int) { const_iterator it=*this;PlusPlus();return it; } \
         const_reference operator *() const { return m_node->m_value; } \
-        const_pointer operator ->() const { return &(m_node->m_value); } \
+        PTROPERATOR(const_pointer) \
     }; \
  \
     CLASSNAME( size_type sz = 10, const hasher& hfun = hasher(), \
@@ -272,9 +297,9 @@ public: \
     const_iterator end() const { return const_iterator(NULL, this); } \
     iterator end() { return iterator(NULL, this); } \
     const_iterator begin() const \
-        { return const_iterator(wx_static_cast(Node*, GetFirstNode(m_tableBuckets, m_table)), this); } \
+        { return const_iterator(static_cast<Node*>(GetFirstNode(m_tableBuckets, m_table)), this); } \
     iterator begin() \
-        { return iterator(wx_static_cast(Node*, GetFirstNode(m_tableBuckets, m_table)), this); } \
+        { return iterator(static_cast<Node*>(GetFirstNode(m_tableBuckets, m_table)), this); } \
  \
     size_type erase( const const_key_type& key ) \
     { \
@@ -285,7 +310,7 @@ public: \
  \
         --m_items; \
         _wxHashTable_NodeBase* temp = (*node)->m_next; \
-        delete wx_static_cast(Node*, *node); \
+        delete static_cast<Node*>(*node); \
         (*node) = temp; \
         if( SHOULD_SHRINK( m_tableBuckets, m_items ) ) \
             ResizeTable( GetPreviousPrime( (unsigned long) m_tableBuckets ) - 1 ); \
@@ -304,7 +329,7 @@ protected: \
     { \
         const const_key_type& key = m_getKey( value ); \
         size_t bucket = m_hasher( key ) % m_tableBuckets; \
-        Node* node = wx_static_cast(Node*, m_table[bucket]); \
+        Node* node = static_cast<Node*>(m_table[bucket]); \
  \
         while( node ) \
         { \
@@ -344,7 +369,7 @@ protected: \
  \
         while( *node ) \
         { \
-            if (m_equals(m_getKey(wx_static_cast(Node*, *node)->m_value), key)) \
+            if (m_equals(m_getKey(static_cast<Node*>(*node)->m_value), key)) \
                 return node; \
             node = &(*node)->m_next; \
         } \
@@ -357,7 +382,7 @@ protected: \
     Node* GetNode( const const_key_type& key ) const \
     { \
         size_t bucket = m_hasher( key ) % m_tableBuckets; \
-        Node* node = wx_static_cast(Node*, m_table[bucket]); \
+        Node* node = static_cast<Node*>(m_table[bucket]); \
  \
         while( node ) \
         { \
@@ -402,13 +427,15 @@ protected: \
 CLASSEXP CLASSNAME \
 { \
 public: \
+    typedef KEY_T first_type; \
+    typedef VALUE_T second_type; \
     typedef KEY_T t1; \
     typedef VALUE_T t2; \
     typedef const KEY_T const_t1; \
     typedef const VALUE_T const_t2; \
  \
     CLASSNAME(const const_t1& f, const const_t2& s) \
-        : first(wx_const_cast(t1&, f)), second(wx_const_cast(t2&, s)) {} \
+        : first(const_cast<t1&>(f)), second(const_cast<t2&>(s)) {} \
  \
     t1 first; \
     t2 second; \
@@ -443,7 +470,7 @@ inline bool grow_lf70( size_t buckets, size_t items )
     return float(items)/float(buckets) >= 0.85;
 }
 
-#endif // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+#endif // various hash map implementations
 
 // ----------------------------------------------------------------------------
 // hashing and comparison functors
@@ -453,7 +480,7 @@ inline bool grow_lf70( size_t buckets, size_t items )
 //     operators to suppress warnings about "statement with no effect" from gcc
 //     in the hash table class assignment operator (where they're assigned)
 
-#if wxUSE_STL && defined(HAVE_STL_HASH_MAP)
+#ifndef wxNEEDS_WX_HASH_MAP
 
 // integer types
 class WXDLLIMPEXP_BASE wxIntegerHash
@@ -465,7 +492,7 @@ class WXDLLIMPEXP_BASE wxIntegerHash
     WX_HASH_MAP_NAMESPACE::hash<short> shortHash;
     WX_HASH_MAP_NAMESPACE::hash<unsigned short> ushortHash;
 
-#if defined wxLongLong_t && !defined wxLongLongIsLong
+#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
     // 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)
@@ -479,7 +506,7 @@ class WXDLLIMPEXP_BASE wxIntegerHash
     #else
     WX_HASH_MAP_NAMESPACE::hash<wxLongLong_t> longlongHash;
     #endif
-#endif
+#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
 
 public:
     wxIntegerHash() { }
@@ -489,15 +516,15 @@ public:
     size_t operator()( unsigned int x ) const { return uintHash( x ); }
     size_t operator()( short x ) const { return shortHash( x ); }
     size_t operator()( unsigned short x ) const { return ushortHash( x ); }
-#if defined wxLongLong_t && !defined wxLongLongIsLong
+#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
     size_t operator()( wxLongLong_t x ) const { return longlongHash(x); }
     size_t operator()( wxULongLong_t x ) const { return longlongHash(x); }
-#endif
+#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
 
     wxIntegerHash& operator=(const wxIntegerHash&) { return *this; }
 };
 
-#else // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+#else // wxNEEDS_WX_HASH_MAP
 
 // integer types
 class WXDLLIMPEXP_BASE wxIntegerHash
@@ -510,15 +537,15 @@ public:
     unsigned long operator()( unsigned int x ) const { return x; }
     unsigned long operator()( short x ) const { return (unsigned long)x; }
     unsigned long operator()( unsigned short x ) const { return x; }
-#if defined wxLongLong_t && !defined wxLongLongIsLong
-    wxULongLong_t operator()( wxLongLong_t x ) const { return wx_static_cast(wxULongLong_t, x); }
+#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
+    wxULongLong_t operator()( wxLongLong_t x ) const { return static_cast<wxULongLong_t>(x); }
     wxULongLong_t operator()( wxULongLong_t x ) const { return x; }
-#endif
+#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
 
     wxIntegerHash& operator=(const wxIntegerHash&) { return *this; }
 };
 
-#endif // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+#endif // !wxNEEDS_WX_HASH_MAP/wxNEEDS_WX_HASH_MAP
 
 class WXDLLIMPEXP_BASE wxIntegerEqual
 {
@@ -530,10 +557,10 @@ public:
     bool operator()( unsigned int a, unsigned int b ) const { return a == b; }
     bool operator()( short a, short b ) const { return a == b; }
     bool operator()( unsigned short a, unsigned short b ) const { return a == b; }
-#if defined wxLongLong_t && !defined wxLongLongIsLong
+#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
     bool operator()( wxLongLong_t a, wxLongLong_t b ) const { return a == b; }
     bool operator()( wxULongLong_t a, wxULongLong_t b ) const { return a == b; }
-#endif
+#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
 
     wxIntegerEqual& operator=(const wxIntegerEqual&) { return *this; }
 };
@@ -544,10 +571,10 @@ class WXDLLIMPEXP_BASE wxPointerHash
 public:
     wxPointerHash() { }
 
-#if wxUSE_STL && defined(HAVE_STL_HASH_MAP)
-    size_t operator()( const void* k ) const { return (size_t)k; }
-#else
+#ifdef wxNEEDS_WX_HASH_MAP
     wxUIntPtr operator()( const void* k ) const { return wxPtrToUInt(k); }
+#else
+    size_t operator()( const void* k ) const { return (size_t)k; }
 #endif
 
     wxPointerHash& operator=(const wxPointerHash&) { return *this; }
@@ -605,12 +632,18 @@ public:
     wxStringEqual& operator=(const wxStringEqual&) { return *this; }
 };
 
-#if !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+#ifdef wxNEEDS_WX_HASH_MAP
+
+#define wxPTROP_NORMAL(pointer) \
+    pointer operator ->() const { return &(m_node->m_value); }
+#define wxPTROP_NOP(pointer)
 
 #define _WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME, CLASSEXP ) \
 _WX_DECLARE_PAIR( KEY_T, VALUE_T, CLASSNAME##_wxImplementation_Pair, CLASSEXP ) \
 _WX_DECLARE_HASH_MAP_KEY_EX( KEY_T, CLASSNAME##_wxImplementation_Pair, CLASSNAME##_wxImplementation_KeyEx, CLASSEXP ) \
-_WX_DECLARE_HASHTABLE( CLASSNAME##_wxImplementation_Pair, KEY_T, HASH_T, CLASSNAME##_wxImplementation_KeyEx, KEY_EQ_T, CLASSNAME##_wxImplementation_HashTable, CLASSEXP, grow_lf70, never_shrink ) \
+_WX_DECLARE_HASHTABLE( CLASSNAME##_wxImplementation_Pair, KEY_T, HASH_T, \
+    CLASSNAME##_wxImplementation_KeyEx, KEY_EQ_T, wxPTROP_NORMAL, \
+    CLASSNAME##_wxImplementation_HashTable, CLASSEXP, grow_lf70, never_shrink ) \
 CLASSEXP CLASSNAME:public CLASSNAME##_wxImplementation_HashTable \
 { \
 public: \
@@ -646,15 +679,12 @@ public: \
         Node *node = GetOrCreateNode( \
                 CLASSNAME##_wxImplementation_Pair( v.first, v.second ), \
                 created); \
-        if ( !created ) \
-            node->m_value.second = v.second; \
         return Insert_Result(iterator(node, this), created); \
     } \
  \
     size_type erase( const key_type& k ) \
         { return CLASSNAME##_wxImplementation_HashTable::erase( k ); } \
-    void erase( const iterator& it ) { erase( it->first ); } \
-    void erase( const const_iterator& it ) { erase( it->first ); } \
+    void erase( const iterator& it ) { erase( (*it).first ); } \
  \
     /* count() == 0 | 1 */ \
     size_type count( const const_key_type& key ) \
@@ -664,7 +694,7 @@ public: \
     } \
 }
 
-#endif // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+#endif // wxNEEDS_WX_HASH_MAP
 
 // 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) \
@@ -685,7 +715,7 @@ public: \
 
 #define WX_DECLARE_EXPORTED_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, CLASSNAME) \
     WX_DECLARE_HASH_MAP_WITH_DECL( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, \
-                                   CLASSNAME, class WXDLLEXPORT )
+                                   CLASSNAME, class WXDLLIMPEXP_CORE )
 
 #define WX_DECLARE_STRING_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, DECL ) \
     _WX_DECLARE_HASH_MAP( wxString, VALUE_T, wxStringHash, wxStringEqual, \
@@ -693,7 +723,7 @@ public: \
 
 #define WX_DECLARE_EXPORTED_STRING_HASH_MAP( VALUE_T, CLASSNAME ) \
     WX_DECLARE_STRING_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, \
-                                          class WXDLLEXPORT )
+                                          class WXDLLIMPEXP_CORE )
 
 #define WX_DECLARE_VOIDPTR_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, DECL ) \
     _WX_DECLARE_HASH_MAP( void*, VALUE_T, wxPointerHash, wxPointerEqual, \
@@ -701,7 +731,7 @@ public: \
 
 #define WX_DECLARE_EXPORTED_VOIDPTR_HASH_MAP( VALUE_T, CLASSNAME ) \
     WX_DECLARE_VOIDPTR_HASH_MAP_WITH_DECL( VALUE_T, CLASSNAME, \
-                                           class WXDLLEXPORT )
+                                           class WXDLLIMPEXP_CORE )
 
 // delete all hash elements
 //
@@ -723,5 +753,11 @@ public: \
 WX_DECLARE_HASH_MAP_WITH_DECL( long, long, wxIntegerHash, wxIntegerEqual,
                                wxLongToLongHashMap, class WXDLLIMPEXP_BASE );
 
+WX_DECLARE_STRING_HASH_MAP_WITH_DECL( wxString, wxStringToStringHashMap,
+                                      class WXDLLIMPEXP_BASE );
+
+WX_DECLARE_STRING_HASH_MAP_WITH_DECL( wxUIntPtr, wxStringToNumHashMap,
+                                      class WXDLLIMPEXP_BASE );
+
 
 #endif // _WX_HASHMAP_H_