This is the Tiny Vector Matrix Expression Templates library found at http://tvmet.sourceforge.net. It is the fastest and most compact matrix lib out there (for < 10x10 matricies). I have done some minor tweaks to make it compile for mbed. For examples and hints on how to use, see: http://tvmet.sourceforge.net/usage.html
Dependents: Eurobot_2012_Secondary
Diff: xpr/Null.h
- Revision:
- 0:feb4117d16d8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/xpr/Null.h Wed Mar 28 15:53:45 2012 +0000 @@ -0,0 +1,69 @@ +/* + * Tiny Vector Matrix Library + * Dense Vector Matrix Libary of Tiny size using Expression Templates + * + * Copyright (C) 2001 - 2007 Olaf Petzold <opetzold@users.sourceforge.net> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id: Null.h,v 1.11 2007-06-23 15:59:00 opetzold Exp $ + */ + +#ifndef TVMET_XPR_NULL_H +#define TVMET_XPR_NULL_H + +namespace tvmet { + + +/** + * \class XprNull Null.h "tvmet/xpr/Null.h" + * \brief Null object design pattern + */ +class XprNull + : public TvmetBase< XprNull > +{ + XprNull& operator=(const XprNull&); + +public: + explicit XprNull() { } + +public: // debugging Xpr parse tree + void print_xpr(std::ostream& os, std::size_t l=0) const { + os << IndentLevel(l) << "XprNull[O=0]" << std::endl; + } +}; + + +#define TVMET_BINARY_OPERATOR(OP) \ +template< class T > \ +inline \ +T operator OP (const T& lhs, XprNull) { return lhs; } + +TVMET_BINARY_OPERATOR(+) +TVMET_BINARY_OPERATOR(-) +TVMET_BINARY_OPERATOR(*) +TVMET_BINARY_OPERATOR(/) + +#undef TVMET_BINARY_OPERATOR + + +} // namespace tvmet + +#endif // TVMET_XPR_NULL_H + +// Local Variables: +// mode:C++ +// tab-width:8 +// End: