auto buffer class(es)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2095 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/buffer.h b/include/wx/buffer.h
new file mode 100644 (file)
index 0000000..5e107f4
--- /dev/null
+++ b/include/wx/buffer.h
@@ -0,0 +1,69 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        buffer.h
+// Purpose:     auto buffer classes: buffers which automatically free memory
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     12.04.99
+// RCS-ID:      $Id$
+// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// Licence:     wxWindows license
+///////////////////////////////////////////////////////////////////////////////
+
+// these classes are for private use only for now, they're not documented
+
+#ifndef _WX_BUFFER_H
+#define _WX_BUFFER_H
+
+#include <string.h> // strdup()
+#include <wchar.h>  // wcsdup()
+
+// ----------------------------------------------------------------------------
+// Special classes for (wide) character strings: they use malloc/free instead
+// of new/delete
+// ----------------------------------------------------------------------------
+
+class wxCharBuffer
+{
+public:
+    wxCharBuffer(const char *str)
+    {
+        wxASSERT_MSG( str, "NULL string in wxCharBuffer" );
+
+        m_str = str ? strdup(str) : (char *)NULL;
+    }
+
+    // no need to check for NULL, free() does it
+   ~wxCharBuffer() { free(m_str); }
+
+   operator const char *() const { return m_str; }
+
+private:
+   char *m_str;
+};
+
+class wxWCharBuffer
+{
+public:
+    wxWCharBuffer(const wchar_t *wcs)
+    {
+        wxASSERT_MSG( wcs, "NULL string in wxWCharBuffer" );
+
+        m_wcs = wcs ? wcsdup(wcs) : (wchar_t *)NULL;
+    }
+
+    // no need to check for NULL, free() does it
+   ~wxWCharBuffer() { free(m_wcs); }
+
+   operator const wchar_t *() const { return m_wcs; }
+
+private:
+   wchar_t *m_wcs;
+};
+
+// ----------------------------------------------------------------------------
+// template class for any kind of data
+// ----------------------------------------------------------------------------
+
+// TODO
+
+#endif // _WX_BUFFER_H