3 * Interface to GiNaC's simp_lor objects. */
6 * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #ifndef _SIMP__GINAC_LOR_H__
24 #define _SIMP__GINAC_LOR_H__
32 #include "lorentzidx.h"
34 #ifndef NO_NAMESPACE_GINAC
36 #endif // ndef NO_NAMESPACE_GINAC
38 typedef std::pair<std::string,std::string> strstrpair;
39 typedef std::pair<strstrpair,lorentzidx> spmapkey;
41 class spmapkey_is_less
44 bool operator()(const spmapkey & lh, const spmapkey & rh) const
46 bool res = lh.first<rh.first
47 || (!(rh.first<lh.first) && lh.second.compare(rh.second)<0);
52 typedef std::map<spmapkey,ex,spmapkey_is_less> spmap;
56 /** helper class for scalar products */
60 void reg(const simp_lor & v1, const simp_lor & v2, const ex & sp);
61 bool is_defined(const simp_lor & v1, const simp_lor & v2) const;
62 ex evaluate(const simp_lor & v1, const simp_lor & v2) const;
63 void debugprint(void) const;
65 static spmapkey make_key(const simp_lor & v1, const simp_lor & v2);
70 /** Base class for simp_lor object */
71 class simp_lor : public indexed
73 GINAC_DECLARE_REGISTERED_CLASS(simp_lor, indexed)
77 friend class scalar_products;
78 friend simp_lor lor_g(const ex & mu, const ex & nu);
79 friend simp_lor lor_vec(const std::string & n, const ex & mu);
80 friend ex simplify_simp_lor_mul(const ex & m, const scalar_products & sp);
81 friend ex simplify_simp_lor(const ex & e, const scalar_products & sp);
87 invalid, // not properly constructed by one of the friend functions
94 simp_lor(simp_lor_types const t);
95 simp_lor(simp_lor_types const t, const ex & i1, const ex & i2);
96 simp_lor(simp_lor_types const t, const std::string & n, const ex & i1);
97 simp_lor(simp_lor_types const t, const std::string & n, const exvector & iv);
98 simp_lor(simp_lor_types const t, const std::string & n, exvector * ivp);
100 // functions overriding virtual functions from base classes
102 basic * duplicate() const;
103 void printraw(std::ostream & os) const;
104 void printtree(std::ostream & os, unsigned indent) const;
105 void print(std::ostream & os, unsigned upper_precedence=0) const;
106 void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence=0) const;
107 bool info(unsigned inf) const;
108 ex eval(int level=0) const;
110 int compare_same_type(const basic & other) const;
111 bool is_equal_same_type(const basic & other) const;
112 unsigned return_type(void) const;
113 unsigned return_type_tinfo(void) const;
114 ex thisexprseq(const exvector & v) const;
115 ex thisexprseq(exvector * vp) const;
117 // new virtual functions which can be overridden by derived classes
120 // non-virtual functions in this class
122 bool all_of_type_lorentzidx(void) const;
132 inline const simp_lor &ex_to_simp_lor(const ex &e)
134 return static_cast<const simp_lor &>(*e.bp);
137 inline simp_lor &ex_to_nonconst_simp_lor(const ex &e)
139 return static_cast<simp_lor &>(*e.bp);
142 simp_lor lor_g(const ex & mu, const ex & nu);
143 simp_lor lor_vec(const std::string & n, const ex & mu);
144 ex simplify_simp_lor_mul(const ex & m, const scalar_products & sp);
145 ex simplify_simp_lor(const ex & e, const scalar_products & sp=scalar_products());
147 #ifndef NO_NAMESPACE_GINAC
149 #endif // ndef NO_NAMESPACE_GINAC
151 #endif // ndef _SIMP__GINAC_LOR_H__