/usr/include/loki/static_check.h is in libloki-dev 0.1.7-3.
This file is owned by root:root, with mode 0o644.
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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
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