first commit

2026-04-03 11:32:07 +08:00
commit 003be19522
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--- a/include/QxMemLeak/cont_ptr_utils.h
+++ b/include/QxMemLeak/cont_ptr_utils.h
@@ -0,0 +1,151 @@
+// -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+// vim:tabstop=4:shiftwidth=4:expandtab:
+
+/*
+ * Copyright (C) 2004-2008 Wu Yongwei <adah at users dot sourceforge dot net>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any
+ * damages arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute
+ * it freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must
+ *    not claim that you wrote the original software.  If you use this
+ *    software in a product, an acknowledgement in the product
+ *    documentation would be appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must
+ *    not be misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source
+ *    distribution.
+ *
+ * This file is part of Stones of Nvwa:
+ *      http://sourceforge.net/projects/nvwa
+ *
+ */
+
+/*!
+ * \file    cont_ptr_utils.h
+ * \ingroup QxMemLeak
+ *
+ * Utility functors for containers of pointers (adapted from Scott
+ * Meyers' <em>Effective STL</em>).
+ *
+ * \version 1.4, 2007/09/12
+ * \author  Wu Yongwei
+ *
+ */
+
+#ifndef QT_NO_DEBUG
+#ifndef _QX_MODE_RELEASE
+#if _QX_USE_MEM_LEAK_DETECTION
+
+#ifndef _CONT_PTR_UTILS_H
+#define _CONT_PTR_UTILS_H
+
+#ifdef _MSC_VER
+#pragma once
+#endif
+
+namespace qx {
+namespace memory {
+
+/**
+ * Functor to return objects pointed by a container of pointers.
+ *
+ * A typical usage might be like:
+ * @code
+ * vector<Object*> v;
+ * ...
+ * transform(v.begin(), v.end(),
+ *           ostream_iterator<Object>(cout, " "),
+ *           dereference());
+ * @endcode
+ */
+struct QX_DLL_EXPORT dereference
+{
+    template <typename _Tp>
+    const _Tp& operator()(const _Tp* __ptr) const
+    {
+        return *__ptr;
+    }
+};
+
+/**
+ * Functor to compare objects pointed by a container of pointers.
+ *
+ * @code
+ * vector<Object*> v;
+ * ...
+ * sort(v.begin(), v.end(), dereference_less());
+ * @endcode
+ * or
+ * @code
+ * set<Object*, dereference_less> s;
+ * @endcode
+ */
+struct QX_DLL_EXPORT dereference_less
+{
+    template <typename _Pointer>
+    bool operator()(_Pointer __ptr1, _Pointer __ptr2) const
+    {
+        return *__ptr1 < *__ptr2;
+    }
+};
+
+/**
+ * Functor to delete objects pointed by a container of pointers.
+ *
+ * A typical usage might be like:
+ * @code
+ * list<Object*> l;
+ * ...
+ * for_each(l.begin(), l.end(), delete_object());
+ * @endcode
+ */
+struct QX_DLL_EXPORT delete_object
+{
+    template <typename _Pointer>
+    void operator()(_Pointer __ptr) const
+    {
+        delete __ptr;
+    }
+};
+
+/**
+ * Functor to output objects pointed by a container of pointers.
+ *
+ * A typical usage might be like:
+ * @code
+ * list<Object*> l;
+ * ...
+ * for_each(l.begin(), l.end(), output_object<ostream>(cout, " "));
+ * @endcode
+ */
+template <typename _OutputStrm, typename _StringType = const char*>
+struct output_object
+{
+    output_object(_OutputStrm& __outs, const _StringType& __sep)
+        : _M_outs(__outs), _M_sep(__sep)
+    {}
+
+    template <typename _Tp>
+    void operator()(const _Tp* __ptr) const
+    {
+        _M_outs << *__ptr << _M_sep;
+    }
+
+private:
+    _OutputStrm& _M_outs;
+    _StringType  _M_sep;
+};
+
+} // namespace memory
+} // namespace qx
+
+#endif // _CONT_PTR_UTILS_H
+#endif // _QX_USE_MEM_LEAK_DETECTION
+#endif // _QX_MODE_RELEASE
+#endif // QT_NO_DEBUG