88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_TRAITS_H
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#define NL_TRAITS_H
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#include "rgba.h"
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#include "vector.h"
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namespace NLMISC
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{
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/** Class that gives information about a type. Useful to do some optimization in templates functions / class
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* This class is intended to be specialized and taylored for each type of interest
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*
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* \author Nicolas Vizerie
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* \author Nevrax France
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* \date 2004
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*/
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template <class T>
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struct CTraits
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{
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enum { HasTrivialCtor = false }; // if true, the default ctor does nothing useful (example : built-in types or Plain Old Datas structs)
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enum { HasTrivialDtor = false }; // the dtor does nothing useful and is not worth calling. Useful to optimize containers clean-up
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enum { SupportRawCopy = false }; // the object supports raw copy with memcpy
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// to be completed ..
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};
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#define NL_TRIVIAL_TYPE_TRAITS(type) \
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template <> \
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struct CTraits<type> \
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{ \
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enum { HasTrivialCtor = true }; \
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enum { HasTrivialDtor = true }; \
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enum { SupportRawCopy = true }; \
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};
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// integral types
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NL_TRIVIAL_TYPE_TRAITS(bool);
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#ifdef NL_COMP_VC6
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NL_TRIVIAL_TYPE_TRAITS(sint8);
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NL_TRIVIAL_TYPE_TRAITS(uint8);
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#endif // NL_COMP_VC6
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NL_TRIVIAL_TYPE_TRAITS(sint16);
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NL_TRIVIAL_TYPE_TRAITS(uint16);
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NL_TRIVIAL_TYPE_TRAITS(sint32);
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NL_TRIVIAL_TYPE_TRAITS(uint32);
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NL_TRIVIAL_TYPE_TRAITS(sint64);
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NL_TRIVIAL_TYPE_TRAITS(uint64);
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#ifdef NL_COMP_VC6
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NL_TRIVIAL_TYPE_TRAITS(sint);
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NL_TRIVIAL_TYPE_TRAITS(uint);
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#endif // NL_COMP_VC6
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// characters
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NL_TRIVIAL_TYPE_TRAITS(char);
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NL_TRIVIAL_TYPE_TRAITS(unsigned char);
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// numeric types
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NL_TRIVIAL_TYPE_TRAITS(float);
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NL_TRIVIAL_TYPE_TRAITS(double);
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// misc
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NL_TRIVIAL_TYPE_TRAITS(CVector);
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NL_TRIVIAL_TYPE_TRAITS(CRGBA);
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//.. to be completed
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} // NLMISC
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#endif
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