3.0

1 files changed, 45 insertions, 0 deletions

diff --git a/shared/loki/static_check.h b/shared/loki/static_check.h
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+////////////////////////////////////////////////////////////////////////////////
+// The Loki Library
+// Copyright (c) 2001 by Andrei Alexandrescu
+// This code accompanies the book:
+// Alexandrescu, Andrei. "Modern C++ Design: Generic Programming and Design 
+//     Patterns Applied". Copyright (c) 2001. Addison-Wesley.
+// Permission to use, copy, modify, distribute and sell this software for any 
+//     purpose is hereby granted without fee, provided that the above copyright 
+//     notice appear in all copies and that both that copyright notice and this 
+//     permission notice appear in supporting documentation.
+// The author or Addison-Wesley Longman make no representations about the 
+//     suitability of this software for any purpose. It is provided "as is" 
+//     without express or implied warranty.
+////////////////////////////////////////////////////////////////////////////////
+#ifndef LOKI_STATIC_CHECK_INC_
+#define LOKI_STATIC_CHECK_INC_
+
+// $Id: static_check.h 752 2006-10-17 19:52:18Z syntheticpp $
+
+
+namespace Loki
+{
+////////////////////////////////////////////////////////////////////////////////
+// Helper structure for the STATIC_CHECK macro
+////////////////////////////////////////////////////////////////////////////////
+
+    template<int> struct CompileTimeError;
+    template<> struct CompileTimeError<true> {};
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// macro STATIC_CHECK
+// Invocation: STATIC_CHECK(expr, id)
+// where:
+// expr is a compile-time integral or pointer expression
+// id is a C++ identifier that does not need to be defined
+// If expr is zero, id will appear in a compile-time error message.
+////////////////////////////////////////////////////////////////////////////////
+
+#define LOKI_STATIC_CHECK(expr, msg) \
+    { Loki::CompileTimeError<((expr) != 0)> ERROR_##msg; (void)ERROR_##msg; } 
+
+
+#endif // end file guardian
+