#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"
+#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 defined(HAVE_EXT_HASH_MAP)
+ #include <ext/hash_map>
+#elif defined(HAVE_HASH_MAP)
+ #include <hash_map>
+#endif
+
+#if defined(HAVE_GNU_CXX_HASH_MAP)
+ #define WX_HASH_MAP_NAMESPACE __gnu_cxx
+#elif defined(HAVE_STD_HASH_MAP)
+ #define WX_HASH_MAP_NAMESPACE std
+#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;
+
+#else // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+
+
+#ifdef __WXWINCE__
+typedef int ptrdiff_t;
+#else
#include <stddef.h> // for ptrdiff_t
+#endif
// private
struct WXDLLIMPEXP_BASE _wxHashTable_NodeBase
value_type m_value; \
}; \
\
- struct Iterator; \
- friend struct Iterator; \
+ CLASSEXP Iterator; \
+ friend CLASSEXP Iterator; \
protected: \
static void DeleteNode( _wxHashTable_NodeBase* node ) \
{ \
/* */ \
/* forward iterator */ \
/* */ \
- struct Iterator \
+ CLASSEXP Iterator \
{ \
+ public: \
Node* m_node; \
Self* m_ht; \
\
}; \
\
public: \
- struct iterator:public Iterator \
+ CLASSEXP iterator : public Iterator \
{ \
+ public: \
iterator() : Iterator() {} \
iterator( Node* node, Self* ht ) : Iterator( node, ht ) {} \
iterator& operator++() { PlusPlus(); return *this; } \
pointer operator ->() const { return &(m_node->m_value); } \
}; \
\
- struct const_iterator:public Iterator \
+ CLASSEXP const_iterator : public Iterator \
{ \
+ public: \
const_iterator() : Iterator() {} \
const_iterator( Node* node, const Self* ht ) \
: Iterator( node, (Self*)ht ) {} \
} \
static Node* CopyNode( Node* node ) { return new Node( *node ); } \
\
- Node* GetOrCreateNode( const value_type& value ) \
+ Node* GetOrCreateNode( const value_type& value, bool& created ) \
{ \
const const_key_type& key = m_getKey( value ); \
size_t bucket = m_hasher( key ) % m_tableBuckets; \
while( node ) \
{ \
if( m_equals( m_getKey( node->m_value ), key ) ) \
+ { \
+ created = false; \
return node; \
+ } \
node = node->m_next(); \
} \
- \
- node = new Node( value ); \
+ created = true; \
+ 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; \
\
\
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 \
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; \
};
// grow/shrink predicates
-inline bool never_grow( size_t, size_t ) { return FALSE; }
-inline bool never_shrink( size_t, size_t ) { return FALSE; }
+inline bool never_grow( size_t, size_t ) { return false; }
+inline bool never_shrink( size_t, size_t ) { return false; }
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)
+
// ----------------------------------------------------------------------------
// hashing and comparison functors
// ----------------------------------------------------------------------------
// 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)
+
+// integer types
+class WXDLLIMPEXP_BASE wxIntegerHash
+{
+ WX_HASH_MAP_NAMESPACE::hash<long> longHash;
+ WX_HASH_MAP_NAMESPACE::hash<unsigned long> ulongHash;
+ WX_HASH_MAP_NAMESPACE::hash<int> intHash;
+ WX_HASH_MAP_NAMESPACE::hash<unsigned int> uintHash;
+ WX_HASH_MAP_NAMESPACE::hash<short> shortHash;
+ WX_HASH_MAP_NAMESPACE::hash<unsigned short> ushortHash;
+public:
+ wxIntegerHash() { }
+ size_t operator()( long x ) const { return longHash( x ); }
+ size_t operator()( unsigned long x ) const { return ulongHash( x ); }
+ size_t operator()( int x ) const { return intHash( x ); }
+ 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 ); }
+
+ wxIntegerHash& operator=(const wxIntegerHash&) { return *this; }
+};
+
+#else // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+
// integer types
class WXDLLIMPEXP_BASE wxIntegerHash
{
wxIntegerHash& operator=(const wxIntegerHash&) { return *this; }
};
+#endif // !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+
class WXDLLIMPEXP_BASE wxIntegerEqual
{
public:
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)wxPtrToULong(k); }
+#if wxUSE_STL && defined(HAVE_STL_HASH_MAP)
+ size_t operator()( const void* k ) const { return (size_t)k; }
+#else
+ wxUIntPtr operator()( const void* k ) const { return wxPtrToUInt(k); }
+#endif
wxPointerHash& operator=(const wxPointerHash&) { return *this; }
};
wxStringEqual& operator=(const wxStringEqual&) { return *this; }
};
+#if !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)
+
#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 ) \
{ \
public: \
typedef VALUE_T mapped_type; \
+ _WX_DECLARE_PAIR( iterator, bool, Insert_Result, CLASSEXP ) \
\
- 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; \
+ bool created; \
+ return GetOrCreateNode( \
+ CLASSNAME##_wxImplementation_Pair( key, mapped_type() ), \
+ created)->m_value.second; \
} \
\
const_iterator find( const const_key_type& key ) const \
return iterator( GetNode( key ), this ); \
} \
\
- void insert( const value_type& v ) { (*this)[v.first] = v.second; } \
+ Insert_Result insert( const value_type& v ) \
+ { \
+ bool created; \
+ 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 ); } \
{ return GetNode( key ) ? 1 : 0; } \
}
+#endif // !wxUSE_STL || !defined(HAVE_STL_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) \
_WX_DECLARE_HASH_MAP( KEY_T, VALUE_T, HASH_T, KEY_EQ_T, 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(); \
+ }
+
+//---------------------------------------------------------------------------
+// Declarations of common hashmap classes
+
+WX_DECLARE_HASH_MAP_WITH_DECL( long, long, wxIntegerHash, wxIntegerEqual,
+ wxLongToLongHashMap, class WXDLLIMPEXP_BASE );
+
#endif // _WX_HASHMAP_H_
projects / wxWidgets.git / blobdiff