Add wxVectorSort function for sorting wxVector<T> containers. Closes #11889

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63904 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/vector.h

@@ -18,6 +18,11 @@
 
 #include <vector>
 #define wxVector std::vector
+template<typename T>
+inline void wxVectorSort(wxVector<T>& v)
+{
+    std::sort(v.begin(), v.end());
+}
 
 #else // !wxUSE_STL
 
@@ -437,6 +442,40 @@ inline typename wxVector<T>::size_type wxVector<T>::erase(size_type n)
 }
 #endif // WXWIN_COMPATIBILITY_2_8
 
+
+
+namespace wxPrivate
+{
+    // This function is a helper for the wxVectorSort function, and should
+    // not be used directly in user's code.
+
+template<typename T>
+int wxVectorSort_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::wxVectorSort_compare<T>, NULL);
+}
+
+
+
 #endif // wxUSE_STL/!wxUSE_STL
 
 #if WXWIN_COMPATIBILITY_2_8