4.0

1 files changed, 142 insertions, 0 deletions

diff --git a/shared/fixed_list.h b/shared/fixed_list.h
new file mode 100644
index 00000000..97976149
--- /dev/null
+++ b/shared/fixed_list.h
@@ -0,0 +1,142 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+
+#ifndef PTR_WRAP_012384670856841394535
+#define PTR_WRAP_012384670856841394535
+
+#include <iterator>
+
+namespace zen
+{
+//std::list(C++11) compatible class supporting inplace element construction for non-copyable/movable types
+//may be replaced by C++11 std::list when available
+template <class T>
+class FixedList
+{
+    struct Node
+    {
+        Node() : next(NULL) {}
+        template <class A>                                              Node(A && a)                                    : next(NULL), val(a) {}
+        template <class A, class B>                                     Node(A && a, B && b)                             : next(NULL), val(a, b) {}
+        template <class A, class B, class C>                            Node(A && a, B && b, C && c)                      : next(NULL), val(a, b, c) {}
+        template <class A, class B, class C, class D>                   Node(A && a, B && b, C && c, D && d)               : next(NULL), val(a, b, c, d) {}
+        template <class A, class B, class C, class D, class E>          Node(A && a, B && b, C && c, D && d, E && e)        : next(NULL), val(a, b, c, d, e) {}
+        template <class A, class B, class C, class D, class E, class F> Node(A && a, B && b, C && c, D && d, E && e, F && f) : next(NULL), val(a, b, c, d, e, f) {}
+
+        Node* next; //singly linked list is sufficient
+        T val;
+    };
+
+public:
+    FixedList() :
+        first(NULL),
+        lastInsert(NULL),
+        sz(0) {}
+
+    ~FixedList() { clear(); }
+
+    template <class NodeT, class U>
+    class ListIterator : public std::iterator<std::forward_iterator_tag, U>
+    {
+    public:
+        ListIterator(NodeT* it = NULL) : iter(it) {}
+        ListIterator& operator++() { iter = iter->next; return *this; }
+        inline friend bool operator==(const ListIterator& lhs, const ListIterator& rhs) { return lhs.iter == rhs.iter; }
+        inline friend bool operator!=(const ListIterator& lhs, const ListIterator& rhs) { return !(lhs == rhs); }
+        U& operator* () { return iter->val; }
+        U* operator->() { return &iter->val; }
+    private:
+        NodeT* iter;
+    };
+
+    typedef T value_type;
+    typedef ListIterator<Node, T> iterator;
+    typedef ListIterator<const Node, const T> const_iterator;
+    typedef T& reference;
+    typedef const T& const_reference;
+
+    iterator begin() { return first; }
+    iterator end()   { return iterator(); }
+
+    const_iterator begin() const { return first; }
+    const_iterator end  () const { return const_iterator(); }
+
+    reference       front()       { return first->val; }
+    const_reference front() const { return first->val; }
+
+    reference&       back()       { return lastInsert->val; }
+    const_reference& back() const { return lastInsert->val; }
+
+    void emplace_back() { pushNode(new Node); }
+    template <class A>                                              void emplace_back(A && a)                                    { pushNode(new Node(std::forward<A>(a))); }
+    template <class A, class B>                                     void emplace_back(A && a, B && b)                             { pushNode(new Node(std::forward<A>(a), std::forward<B>(b))); }
+    template <class A, class B, class C>                            void emplace_back(A && a, B && b, C && c)                      { pushNode(new Node(std::forward<A>(a), std::forward<B>(b), std::forward<C>(c))); }
+    template <class A, class B, class C, class D>                   void emplace_back(A && a, B && b, C && c, D && d)               { pushNode(new Node(std::forward<A>(a), std::forward<B>(b), std::forward<C>(c), std::forward<D>(d))); }
+    template <class A, class B, class C, class D, class E>          void emplace_back(A && a, B && b, C && c, D && d, E && e)        { pushNode(new Node(std::forward<A>(a), std::forward<B>(b), std::forward<C>(c), std::forward<D>(d), std::forward<E>(e))); }
+    template <class A, class B, class C, class D, class E, class F> void emplace_back(A && a, B && b, C && c, D && d, E && e, F && f) { pushNode(new Node(std::forward<A>(a), std::forward<B>(b), std::forward<C>(c), std::forward<D>(d), std::forward<E>(e), std::forward<F>(f))); }
+
+    template <class Predicate>
+    void remove_if(Predicate pred)
+    {
+        Node* prev = NULL;
+        for (auto ptr = first; ptr;)
+            if (pred(ptr->val))
+            {
+                Node* tmp = ptr->next;
+                deleteNode(ptr);
+                if (prev)
+                    prev->next = ptr = tmp;
+                else
+                    first = ptr = tmp;
+                if (tmp == NULL)
+                    lastInsert = prev;
+            }
+            else
+            {
+                prev = ptr;
+                ptr = ptr->next;
+            }
+    }
+
+    void clear() { remove_if([](T&) { return true; }); }
+    bool empty() const { return first == NULL; }
+    size_t size() const { return sz; }
+
+private:
+    FixedList(const FixedList&);
+    FixedList& operator=(const FixedList&);
+
+    void pushNode(Node* newNode)
+    {
+        ++sz;
+        if (lastInsert == NULL)
+        {
+            assert(first == NULL);
+            first = lastInsert = newNode;
+        }
+        else
+        {
+            assert(lastInsert->next == NULL);
+            lastInsert->next = newNode;
+            lastInsert = newNode;
+        }
+    }
+
+    void deleteNode(Node* oldNode)
+    {
+        assert(sz > 0);
+        --sz;
+        delete oldNode;
+    }
+
+    Node* first;
+    Node* lastInsert; //point to last insertion; required by emplace_back()
+    size_t sz;
+};
+}
+
+
+#endif //PTR_WRAP_012384670856841394535