c5ca330861
git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@30 7ec92016-0320-0410-acc4-a06ded1c099a
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
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 Sletteb<65> to BCC 5.6
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
#endif // STATIC_CHECK_INC_
|
||
@
|