Borland Port from experimental

git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@30 7ec92016-0320-0410-acc4-a06ded1c099a

Borland/static_check.h

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+head	1.1;
+access;
+symbols;
+locks; strict;
+comment	@ * @;
+
+
+1.1
+date	2002.07.16.22.42.05;	author tslettebo;	state Exp;
+branches;
+next	;
+
+
+desc
+@@
+
+
+1.1
+log
+@Initial commit
+@
+text
+@////////////////////////////////////////////////////////////////////////////////
+// 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.
+////////////////////////////////////////////////////////////////////////////////
+
+// Last update: June 20, 2001
+
+#ifndef STATIC_CHECK_INC_
+#define STATIC_CHECK_INC_
+
+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 STATIC_CHECK(expr, msg) \
+    { Loki::CompileTimeError<((expr) != 0)> ERROR_##msg; (void)ERROR_##msg; } 
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Change log:
+// March 20, 2001: add extra parens to STATIC_CHECK - it looked like a fun 
+//                 definition
+// June  20, 2001: ported by Nick Thurn to gcc 2.95.3. Kudos, Nick!!!
+// July  16, 2002: Ported by Terje Slettebø to BCC 5.6
+////////////////////////////////////////////////////////////////////////////////
+
+#endif // STATIC_CHECK_INC_
+@