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/UnOperator.h
- Revision:
- 0:feb4117d16d8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/xpr/UnOperator.h Wed Mar 28 15:53:45 2012 +0000 @@ -0,0 +1,99 @@ +/* + * 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: UnOperator.h,v 1.17 2007-06-23 15:59:00 opetzold Exp $ + */ + +#ifndef TVMET_XPR_UNOPERATOR_H +#define TVMET_XPR_UNOPERATOR_H + +namespace tvmet { + + +/** + * \class XprUnOp UnOperator.h "tvmet/xpr/UnOperator.h" + * \brief Unary operator working on one subexpression. + * + * Using the access operator() the unary operation will be evaluated. + */ +template<class UnOp, class E> +class XprUnOp + : public TvmetBase< XprUnOp<UnOp, E> > +{ + XprUnOp(); + XprUnOp& operator=(const XprUnOp&); + +public: + typedef typename UnOp::value_type value_type; + +public: + /** Complexity counter. */ + enum { + ops_expr = E::ops, + ops = 1 * ops_expr + }; + +public: + /** Constructor for an expressions. */ + explicit XprUnOp(const E& e) + : m_expr(e) + { } + + /** Copy Constructor. Not explicit! */ +#if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR) + XprUnOp(const XprUnOp& e) + : m_expr(e.m_expr) + { } +#endif + + /** Index operator, evaluates the expression inside. */ + value_type operator()(std::size_t i) const { + return UnOp::apply_on(m_expr(i)); + } + + /** index operator for arrays/matrices. */ + value_type operator()(std::size_t i, std::size_t j) const { + return UnOp::apply_on(m_expr(i, j)); + } + +public: // debugging Xpr parse tree + void print_xpr(std::ostream& os, std::size_t l=0) const { + os << IndentLevel(l++) + << "XprUnOp[O="<< ops << ", (O=" << ops_expr << ")]<" + << std::endl; + UnOp::print_xpr(os, l); + m_expr.print_xpr(os, l); + os << IndentLevel(--l) + << ">," << std::endl; + } + +private: + const E m_expr; +}; + + +} // namespace tvmet + +#endif // TVMET_XPR_UNOPERATOR_H + +// Local Variables: +// mode:C++ +// tab-width:8 +// End: