X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fsymbol.h;h=5cb84c252aef6657cd5b036f1e59aeac4d6cb8a4;hp=00d4b9034f665fb1d986beb9270ec88640ada0a1;hb=aac4cec4d116f0b39daddb35181d1aa85297d4ba;hpb=12fefbca9b424cb8e9ae05d83883b96e17c7b96e diff --git a/ginac/symbol.h b/ginac/symbol.h index 00d4b903..5cb84c25 100644 --- a/ginac/symbol.h +++ b/ginac/symbol.h @@ -3,7 +3,7 @@ * Interface to GiNaC's symbolic objects. */ /* - * GiNaC Copyright (C) 1999-2008 Johannes Gutenberg University Mainz, Germany + * GiNaC Copyright (C) 1999-2020 Johannes Gutenberg University Mainz, Germany * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -20,14 +20,16 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ -#ifndef __GINAC_SYMBOL_H__ -#define __GINAC_SYMBOL_H__ +#ifndef GINAC_SYMBOL_H +#define GINAC_SYMBOL_H -#include -#include #include "basic.h" #include "ex.h" #include "ptr.h" +#include "archive.h" + +#include +#include namespace GiNaC { @@ -36,115 +38,105 @@ namespace GiNaC { class symbol : public basic { GINAC_DECLARE_REGISTERED_CLASS(symbol, basic) - - friend class realsymbol; - friend class possymbol; - -// member functions - // other constructors public: - explicit symbol(const std::string & initname, unsigned domain = domain::complex); - symbol(const std::string & initname, const std::string & texname, unsigned domain = domain::complex); - symbol(const std::string & initname, const std::string & texname, unsigned rt, unsigned domain); - symbol(const std::string & initname, unsigned rt, const return_type_t& rtt, unsigned domain = domain::complex); - symbol(const std::string & initname, const std::string & texname, unsigned rt, const return_type_t& rtt, unsigned domain = domain::complex); + explicit symbol(const std::string & initname); + symbol(const std::string & initname, const std::string & texname); // functions overriding virtual functions from base classes public: - bool info(unsigned inf) const; - ex eval(int level = 0) const { return *this; } // for performance reasons - ex evalf(int level = 0) const { return *this; } // overwrites basic::evalf() for performance reasons - ex series(const relational & s, int order, unsigned options = 0) const; - ex subs(const exmap & m, unsigned options = 0) const { return subs_one_level(m, options); } // overwrites basic::subs() for performance reasons - ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const; - ex to_rational(exmap & repl) const; - ex to_polynomial(exmap & repl) const; - unsigned return_type() const { return ret_type; } - return_type_t return_type_tinfo() const { return ret_type_tinfo; } - ex conjugate() const; - ex real_part() const; - ex imag_part() const; - bool is_polynomial(const ex & var) const; + bool info(unsigned inf) const override; + ex eval() const override { return *this; } // for performance reasons + ex evalf() const override { return *this; } // overwrites basic::evalf() for performance reasons + ex series(const relational & s, int order, unsigned options = 0) const override; + ex subs(const exmap & m, unsigned options = 0) const override { return subs_one_level(m, options); } // overwrites basic::subs() for performance reasons + ex normal(exmap & repl, exmap & rev_lookup) const override; + ex to_rational(exmap & repl) const override; + ex to_polynomial(exmap & repl) const override; + ex conjugate() const override; + ex real_part() const override; + ex imag_part() const override; + bool is_polynomial(const ex & var) const override; + /** Save (a.k.a. serialize) object into archive. */ + void archive(archive_node& n) const override; + /** Read (a.k.a. deserialize) object from archive. */ + void read_archive(const archive_node& n, lst& syms) override; protected: - ex derivative(const symbol & s) const; - bool is_equal_same_type(const basic & other) const; - unsigned calchash() const; + ex derivative(const symbol & s) const override; + bool is_equal_same_type(const basic & other) const override; + unsigned calchash() const override; + + // new virtual functions which can be overridden by derived classes +public: + virtual unsigned get_domain() const { return domain::complex; } // non-virtual functions in this class public: void set_name(const std::string & n) { name = n; } - std::string get_name() const { return name; } - unsigned get_domain() const { return domain; } + void set_TeX_name(const std::string & n) { TeX_name = n; } + std::string get_name() const; + std::string get_TeX_name() const; protected: void do_print(const print_context & c, unsigned level) const; void do_print_latex(const print_latex & c, unsigned level) const; void do_print_tree(const print_tree & c, unsigned level) const; void do_print_python_repr(const print_python_repr & c, unsigned level) const; -private: - std::string & autoname_prefix(); - std::string default_TeX_name() const; // member variables protected: unsigned serial; ///< unique serial number for comparison - std::string name; ///< printname of this symbol + mutable std::string name; ///< printname of this symbol std::string TeX_name; ///< LaTeX name of this symbol - unsigned domain; ///< domain of symbol, complex (default) or real - unsigned ret_type; ///< value returned by return_type() - return_type_t ret_type_tinfo; ///< value returned by return_type_tinfo() private: static unsigned next_serial; }; +GINAC_DECLARE_UNARCHIVER(symbol); /** Specialization of symbol to real domain */ class realsymbol : public symbol { - // constructors public: realsymbol(); - explicit realsymbol(const std::string & initname, unsigned domain = domain::real); - realsymbol(const std::string & initname, const std::string & texname, unsigned domain = domain::real); - realsymbol(const std::string & initname, unsigned rt, const return_type_t& rtt, unsigned domain = domain::real); - realsymbol(const std::string & initname, const std::string & texname, unsigned rt, const return_type_t& rtt, unsigned domain = domain::real); + explicit realsymbol(const std::string & initname); + realsymbol(const std::string & initname, const std::string & texname); + + unsigned get_domain() const override { return domain::real; } + + ex conjugate() const override { return *this; } + ex real_part() const override { return *this; } + ex imag_part() const override { return 0; } + + realsymbol* duplicate() const override + { + realsymbol * bp = new realsymbol(*this); + bp->setflag(status_flags::dynallocated); + return bp; + } }; +GINAC_DECLARE_UNARCHIVER(realsymbol); -/** Specialization of symbol to real domain */ -class possymbol : public symbol +/** Specialization of symbol to real positive domain */ +class possymbol : public realsymbol { - // constructors public: possymbol(); - explicit possymbol(const std::string & initname, unsigned domain = domain::positive); - possymbol(const std::string & initname, const std::string & texname, unsigned domain = domain::positive); - possymbol(const std::string & initname, unsigned rt, const return_type_t& rtt, unsigned domain = domain::positive); - possymbol(const std::string & initname, const std::string & texname, unsigned rt, const return_type_t& rtt, unsigned domain = domain::positive); -}; - + explicit possymbol(const std::string & initname); + possymbol(const std::string & initname, const std::string & texname); -// utility functions + unsigned get_domain() const override { return domain::positive; } -/** Specialization of is_exactly_a(obj) for realsymbol objects. */ -template<> inline bool is_exactly_a(const basic & obj) -{ - if (!is_a(obj)) - return false; - unsigned domain = static_cast(obj).get_domain(); - return domain==domain::real || domain==domain::positive; -} - -/** Specialization of is_exactly_a(obj) for possymbol objects. */ -template<> inline bool is_exactly_a(const basic & obj) -{ - if (!is_a(obj)) - return false; - unsigned domain = static_cast(obj).get_domain(); - return domain == domain::positive; -} + possymbol* duplicate() const override + { + possymbol * bp = new possymbol(*this); + bp->setflag(status_flags::dynallocated); + return bp; + } +}; +GINAC_DECLARE_UNARCHIVER(possymbol); } // namespace GiNaC -#endif // ndef __GINAC_SYMBOL_H__ +#endif // ndef GINAC_SYMBOL_H