Lumiera
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null-value.hpp
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/*
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NULL-VALUE.hpp - maintain per-type NIL values in static memory
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Copyright (C)
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2010, Hermann Vosseler <Ichthyostega@web.de>
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**Lumiera** is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version. See the file COPYING for further details.
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*/
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#ifndef LIB_NULL_VALUE_H
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#define LIB_NULL_VALUE_H
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namespace
lib
{
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template
<
class
TY>
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struct
NullValue
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{
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static
TY
const
&
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get
()
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{
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static
TY nilValue;
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return
nilValue;
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}
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};
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}
// namespace lib
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#endif
lib::NullValue
Singleton holder for NIL or default value objects.
Definition:
null-value.hpp:62
lib
Implementation namespace for support and library code.
Definition:
common-services.cpp:54
lib
null-value.hpp
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