X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fc31181d2cff6ca1e05b6a820c18b87d8915344b..438959cca892a7651634cc3a7aad4819ac49b23c:/include/wx/vector.h

diff --git a/include/wx/vector.h b/include/wx/vector.h
index e2faf83569..dffb19fc9d 100644
--- a/include/wx/vector.h
+++ b/include/wx/vector.h
@@ -14,14 +14,20 @@
 
 #include "wx/defs.h"
 
-#if wxUSE_STL
+#if wxUSE_STD_CONTAINERS
 
 #include <vector>
+#include <algorithm>
+
 #define wxVector std::vector
+template<typename T>
+inline void wxVectorSort(wxVector<T>& v)
+{
+    std::sort(v.begin(), v.end());
+}
 
-#else // !wxUSE_STL
+#else // !wxUSE_STD_CONTAINERS
 
-#include "wx/utils.h"
 #include "wx/scopeguard.h"
 #include "wx/meta/movable.h"
 #include "wx/meta/if.h"
@@ -30,6 +36,15 @@
 #include <new> // for placement new
 #include "wx/afterstd.h"
 
+// wxQsort is declared in wx/utils.h, but can't include that file here,
+// it indirectly includes this file. Just lovely...
+typedef int (*wxSortCallback)(const void* pItem1,
+                              const void* pItem2,
+                              const void* user_data);
+WXDLLIMPEXP_BASE void wxQsort(void* pbase, size_t total_elems,
+                              size_t size, wxSortCallback cmp,
+                              const void* user_data);
+
 namespace wxPrivate
 {
 
@@ -66,7 +81,7 @@ struct wxVectorMemOpsGeneric
         T *mem = (T*)::operator new(newCapacity * sizeof(T));
         for ( size_t i = 0; i < occupiedSize; i++ )
         {
-            new(mem + i) T(old[i]);
+            ::new(mem + i) T(old[i]);
             old[i].~T();
         }
         ::operator delete(old);
@@ -80,7 +95,7 @@ struct wxVectorMemOpsGeneric
         T* sourceptr = source;
         for ( size_t i = count; i > 0; --i, ++destptr, ++sourceptr )
         {
-            new(destptr) T(*sourceptr);
+            ::new(destptr) T(*sourceptr);
             sourceptr->~T();
         }
     }
@@ -92,7 +107,7 @@ struct wxVectorMemOpsGeneric
         T* sourceptr = source + count - 1;
         for ( size_t i = count; i > 0; --i, --destptr, --sourceptr )
         {
-            new(destptr) T(*sourceptr);
+            ::new(destptr) T(*sourceptr);
             sourceptr->~T();
         }
     }
@@ -111,7 +126,10 @@ private:
     // Note that we use typedef instead of privately deriving from this (which
     // would allowed us to omit "Ops::" prefixes below) to keep VC6 happy,
     // it can't compile code that derives from wxIf<...>::value.
-    typedef typename wxIf< wxIsMovable<T>::value,
+    //
+    // Note that bcc needs the extra parentheses for non-type template
+    // arguments to compile this expression.
+    typedef typename wxIf< (wxIsMovable<T>::value),
                            wxPrivate::wxVectorMemOpsMovable<T>,
                            wxPrivate::wxVectorMemOpsGeneric<T> >::value
             Ops;
@@ -121,9 +139,11 @@ public:
     typedef size_t difference_type;
     typedef T value_type;
     typedef value_type* pointer;
+    typedef const value_type* const_pointer;
     typedef value_type* iterator;
     typedef const value_type* const_iterator;
     typedef value_type& reference;
+    typedef const value_type& const_reference;
 
     class reverse_iterator
     {
@@ -131,54 +151,150 @@ public:
         reverse_iterator() : m_ptr(NULL) { }
         wxEXPLICIT reverse_iterator(iterator it) : m_ptr(it) { }
         reverse_iterator(const reverse_iterator& it) : m_ptr(it.m_ptr) { }
-        
+
         reference operator*() const { return *m_ptr; }
         pointer operator->() const { return m_ptr; }
-        
+
         iterator base() const { return m_ptr; }
-        
-        reverse_iterator& operator++() 
-                { --m_ptr; return *this; }
+
+        reverse_iterator& operator++()
+            { --m_ptr; return *this; }
         reverse_iterator operator++(int)
-                { reverse_iterator tmp = *this; --m_ptr; return tmp; }
-        reverse_iterator& operator--() 
-                { ++m_ptr; return *this; }
-        reverse_iterator operator--(int) 
-                { reverse_iterator tmp = *this; ++m_ptr; return tmp; }
-        
+            { reverse_iterator tmp = *this; --m_ptr; return tmp; }
+        reverse_iterator& operator--()
+            { ++m_ptr; return *this; }
+        reverse_iterator operator--(int)
+            { reverse_iterator tmp = *this; ++m_ptr; return tmp; }
+
         reverse_iterator operator+(difference_type n) const
-                { return reverse_iterator(m_ptr - n); }
+            { return reverse_iterator(m_ptr - n); }
         reverse_iterator& operator+=(difference_type n)
-                { return m_ptr -= n; return *this; }
+            { m_ptr -= n; return *this; }
         reverse_iterator operator-(difference_type n) const
-                { return reverse_iterator(m_ptr + n); }
+            { return reverse_iterator(m_ptr + n); }
         reverse_iterator& operator-=(difference_type n)
-                { return m_ptr += n; return *this; }
-                
+            { m_ptr += n; return *this; }
+
         reference operator[](difference_type n) const
-                { return *(*this + n); }
-        
-        bool operator ==(const reverse_iterator& it) const 
-                { return m_ptr == it.m_ptr; }
+            { return *(*this + n); }
+
+        bool operator ==(const reverse_iterator& it) const
+            { return m_ptr == it.m_ptr; }
         bool operator !=(const reverse_iterator& it) const
-                { return m_ptr != it.m_ptr; }
-        
+            { return m_ptr != it.m_ptr; }
+
     private:
         value_type *m_ptr;
+
+        friend class const_reverse_iterator;
+    };
+
+    class const_reverse_iterator
+    {
+    public:
+        const_reverse_iterator() : m_ptr(NULL) { }
+        wxEXPLICIT const_reverse_iterator(const_iterator it) : m_ptr(it) { }
+        const_reverse_iterator(const reverse_iterator& it) : m_ptr(it.m_ptr) { }
+        const_reverse_iterator(const const_reverse_iterator& it) : m_ptr(it.m_ptr) { }
+
+        const_reference operator*() const { return *m_ptr; }
+        const_pointer operator->() const { return m_ptr; }
+
+        const_iterator base() const { return m_ptr; }
+
+        const_reverse_iterator& operator++()
+            { --m_ptr; return *this; }
+        const_reverse_iterator operator++(int)
+            { const_reverse_iterator tmp = *this; --m_ptr; return tmp; }
+        const_reverse_iterator& operator--()
+            { ++m_ptr; return *this; }
+        const_reverse_iterator operator--(int)
+            { const_reverse_iterator tmp = *this; ++m_ptr; return tmp; }
+
+        const_reverse_iterator operator+(difference_type n) const
+            { return const_reverse_iterator(m_ptr - n); }
+        const_reverse_iterator& operator+=(difference_type n)
+            { m_ptr -= n; return *this; }
+        const_reverse_iterator operator-(difference_type n) const
+            { return const_reverse_iterator(m_ptr + n); }
+        const_reverse_iterator& operator-=(difference_type n)
+            { m_ptr += n; return *this; }
+
+        const_reference operator[](difference_type n) const
+            { return *(*this + n); }
+
+        bool operator ==(const const_reverse_iterator& it) const
+            { return m_ptr == it.m_ptr; }
+        bool operator !=(const const_reverse_iterator& it) const
+            { return m_ptr != it.m_ptr; }
+
+    protected:
+        const value_type *m_ptr;
     };
 
     wxVector() : m_size(0), m_capacity(0), m_values(NULL) {}
 
+    wxVector(size_type p_size)
+        : m_size(0), m_capacity(0), m_values(NULL)
+    {
+        reserve(p_size);
+        for ( size_t n = 0; n < p_size; n++ )
+            push_back(value_type());
+    }
+
+    wxVector(size_type p_size, const value_type& v)
+        : m_size(0), m_capacity(0), m_values(NULL)
+    {
+        reserve(p_size);
+        for ( size_t n = 0; n < p_size; n++ )
+            push_back(v);
+    }
+
     wxVector(const wxVector& c) : m_size(0), m_capacity(0), m_values(NULL)
     {
         Copy(c);
     }
 
+    template <class InputIterator>
+    wxVector(InputIterator first, InputIterator last)
+        : m_size(0), m_capacity(0), m_values(NULL)
+    {
+        assign(first, last);
+    }
+
     ~wxVector()
     {
         clear();
     }
 
+    void assign(size_type p_size, const value_type& v)
+    {
+        clear();
+        reserve(p_size);
+        for ( size_t n = 0; n < p_size; n++ )
+            push_back(v);
+    }
+
+    template <class InputIterator>
+    void assign(InputIterator first, InputIterator last)
+    {
+        clear();
+
+        // Notice that it would be nice to call reserve() here but we can't do
+        // it for arbitrary input iterators, we should have a dispatch on
+        // iterator type and call it if possible.
+
+        for ( InputIterator it = first; it != last; ++it )
+            push_back(*it);
+    }
+
+    void swap(wxVector& v)
+    {
+        wxSwap(m_size, v.m_size);
+        wxSwap(m_capacity, v.m_capacity);
+        wxSwap(m_values, v.m_values);
+    }
+
     void clear()
     {
         // call destructors of stored objects:
@@ -201,10 +317,12 @@ public:
         // increase the size twice, unless we're already too big or unless
         // more is requested
         //
-        // NB: casts to size_type are needed to suppress mingw32 warnings about
-        //     mixing enums and ints in the same expression
+        // NB: casts to size_type are needed to suppress warnings about
+        //     mixing enumeral and non-enumeral type in conditional expression
         const size_type increment = m_size > 0
-                                     ? wxMin(m_size, (size_type)ALLOC_MAX_SIZE)
+                                     ? m_size < ALLOC_MAX_SIZE
+                                        ? m_size
+                                        : (size_type)ALLOC_MAX_SIZE
                                      : (size_type)ALLOC_INITIAL_SIZE;
         if ( m_capacity + increment > n )
             n = m_capacity + increment;
@@ -213,6 +331,22 @@ public:
         m_capacity = n;
     }
 
+    void resize(size_type n)
+    {
+        if ( n < m_size )
+            Shrink(n);
+        else if ( n > m_size )
+            Extend(n, value_type());
+    }
+
+    void resize(size_type n, const value_type& v)
+    {
+        if ( n < m_size )
+            Shrink(n);
+        else if ( n > m_size )
+            Extend(n, v);
+    }
+
     size_type size() const
     {
         return m_size;
@@ -230,8 +364,11 @@ public:
 
     wxVector& operator=(const wxVector& vb)
     {
-        clear();
-        Copy(vb);
+        if (this != &vb)
+        {
+            clear();
+            Copy(vb);
+        }
         return *this;
     }
 
@@ -242,7 +379,7 @@ public:
         // use placement new to initialize new object in preallocated place in
         // m_values and store 'v' in it:
         void* const place = m_values + m_size;
-        new(place) value_type(v);
+        ::new(place) value_type(v);
 
         // only increase m_size if the ctor didn't throw an exception; notice
         // that if it _did_ throw, everything is OK, because we only increased
@@ -283,6 +420,9 @@ public:
     reverse_iterator rbegin() { return reverse_iterator(end() - 1); }
     reverse_iterator rend() { return reverse_iterator(begin() - 1); }
 
+    const_reverse_iterator rbegin() const { return const_reverse_iterator(end() - 1); }
+    const_reverse_iterator rend() const { return const_reverse_iterator(begin() - 1); }
+
     iterator insert(iterator it, const value_type& v = value_type())
     {
         // NB: this must be done before reserve(), because reserve()
@@ -309,7 +449,7 @@ public:
 
         // use placement new to initialize new object in preallocated place in
         // m_values and store 'v' in it:
-        new(place) value_type(v);
+        ::new(place) value_type(v);
 
         // now that we did successfully add the new element, increment the size
         // and disable moving the items back
@@ -367,6 +507,20 @@ private:
     }
 
 private:
+    void Shrink(size_type n)
+    {
+        for ( size_type i = n; i < m_size; i++ )
+            m_values[i].~T();
+        m_size = n;
+    }
+
+    void Extend(size_type n, const value_type& v)
+    {
+        reserve(n);
+        for ( size_type i = m_size; i < n; i++ )
+            push_back(v);
+    }
+
     size_type m_size,
               m_capacity;
     value_type *m_values;
@@ -381,7 +535,45 @@ inline typename wxVector<T>::size_type wxVector<T>::erase(size_type n)
 }
 #endif // WXWIN_COMPATIBILITY_2_8
 
-#endif // wxUSE_STL/!wxUSE_STL
+
+
+namespace wxPrivate
+{
+
+// This is a helper for the wxVectorSort function, and should not be used
+// directly in user's code.
+template<typename T>
+struct wxVectorComparator
+{
+    static int
+    Compare(const void* pitem1, const void* pitem2, const void* )
+    {
+        const T& item1 = *reinterpret_cast<const T*>(pitem1);
+        const T& item2 = *reinterpret_cast<const T*>(pitem2);
+
+        if (item1 < item2)
+            return -1;
+        else if (item2 < item1)
+            return 1;
+        else
+            return 0;
+    }
+};
+
+}  // namespace wxPrivate
+
+
+
+template<typename T>
+void wxVectorSort(wxVector<T>& v)
+{
+    wxQsort(v.begin(), v.size(), sizeof(T),
+            wxPrivate::wxVectorComparator<T>::Compare, NULL);
+}
+
+
+
+#endif // wxUSE_STD_CONTAINERS/!wxUSE_STD_CONTAINERS
 
 #if WXWIN_COMPATIBILITY_2_8
     #define WX_DECLARE_VECTORBASE(obj, cls) typedef wxVector<obj> cls