Nestedsums library: harmonic_polylog.h Source File

00001 00008 /* 00009 * Copyright (C) 2001 Stefan Weinzierl 00010 * 00011 * This program is free software; you can redistribute it and/or modify 00012 * it under the terms of the GNU General Public License as published by 00013 * the Free Software Foundation; either version 2 of the License, or 00014 * (at your option) any later version. 00015 * 00016 * This program is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 * GNU General Public License for more details. 00020 * 00021 * You should have received a copy of the GNU General Public License 00022 * along with this program; if not, write to the Free Software 00023 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00024 */ 00025 00026 #ifndef __NESTEDSUMS_HARMONIC_POLYLOG_H__ 00027 #define __NESTEDSUMS_HARMONIC_POLYLOG_H__ 00028 00029 #include "ginac/ginac.h" 00030 00031 namespace nestedsums { 00032 00034 00049 class harmonic_polylog : public multiple_polylog 00050 { 00051 GINAC_DECLARE_REGISTERED_CLASS(harmonic_polylog, multiple_polylog) 00052 00053 // ctors 00054 public: 00055 explicit harmonic_polylog(const GiNaC::ex & llc); 00056 00057 // functions overriding virtual functions from bases classes 00058 public: 00059 void archive(GiNaC::archive_node &node) const; 00060 void read_archive(const GiNaC::archive_node &node, GiNaC::lst &sym_lst); 00061 00062 GiNaC::return_type_t return_type_tinfo() const; 00063 00064 void print(const GiNaC::print_context & c, unsigned level = 0) const; 00065 GiNaC::ex eval(int level = 0) const; 00066 }; 00067 00068 GINAC_DECLARE_UNARCHIVER(harmonic_polylog); 00069 00075 inline GiNaC::ex create_harmonic_polylog(const GiNaC::ex & llc) 00076 { 00077 return (new harmonic_polylog(llc))->setflag(GiNaC::status_flags::dynallocated); 00078 } 00079 00080 } // namespace nestedsums 00081 00082 namespace GiNaC { 00083 00084 // template specialization 00085 template<> inline const nestedsums::harmonic_polylog &ex_to<nestedsums::harmonic_polylog>(const ex &e) 00086 { 00087 return dynamic_cast<const nestedsums::harmonic_polylog &>(*e.bp); 00088 } 00089 00090 } // end namespace GiNaC 00091 00092 #endif // ndef __NESTEDSUMS_HARMONIC_POLYLOG_H__