Nestedsums library: nielsen_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_NIELSEN_POLYLOG_H__ 00027 #define __NESTEDSUMS_NIELSEN_POLYLOG_H__ 00028 00029 #include "ginac/ginac.h" 00030 00031 namespace nestedsums { 00032 00034 00050 class nielsen_polylog : public harmonic_polylog 00051 { 00052 GINAC_DECLARE_REGISTERED_CLASS(nielsen_polylog, harmonic_polylog) 00053 00054 // ctors 00055 public: 00056 explicit nielsen_polylog(const GiNaC::ex & llc); 00057 00058 // functions overriding virtual functions from bases classes 00059 public: 00060 void archive(GiNaC::archive_node &node) const; 00061 void read_archive(const GiNaC::archive_node &node, GiNaC::lst &sym_lst); 00062 00063 void print(const GiNaC::print_context & c, unsigned level = 0) const; 00064 GiNaC::ex eval(int level = 0) const; 00065 }; 00066 00067 GINAC_DECLARE_UNARCHIVER(nielsen_polylog); 00068 00074 inline GiNaC::ex create_nielsen_polylog(const GiNaC::ex & llc) 00075 { 00076 return (new nielsen_polylog(llc))->setflag(GiNaC::status_flags::dynallocated); 00077 } 00078 00079 } // namespace nestedsums 00080 00081 namespace GiNaC { 00082 00083 // template specialization 00084 template<> inline const nestedsums::nielsen_polylog &ex_to<nestedsums::nielsen_polylog>(const ex &e) 00085 { 00086 return dynamic_cast<const nestedsums::nielsen_polylog &>(*e.bp); 00087 } 00088 00089 } // end namespace GiNaC 00090 00091 #endif // ndef __NESTEDSUMS_NIELSEN_POLYLOG_H__