/usr/include/pynac/symbol.h is in libpynac-dev 0.6.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | /** @file symbol.h
*
* Interface to GiNaC's symbolic objects. */
/*
* GiNaC Copyright (C) 1999-2008 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __GINAC_SYMBOL_H__
#define __GINAC_SYMBOL_H__
#include "basic.h"
#include "ex.h"
#include "infoflagbase.h"
#include <string>
namespace GiNaC {
/** Basic CAS symbol. It has a name because it must know how to output itself.
* It may be assigned an expression, but this feature is only intended for
* programs like 'ginsh' that want to associate symbols with expressions.
* If you want to replace symbols by expressions in your code, you should
* use ex::subs() or use objects of class ex instead of class symbol in the
* first place. */
class symbol : public basic
{
GINAC_DECLARE_REGISTERED_CLASS(symbol, basic)
friend struct print_order;
// types
// member functions
// other constructors
public:
explicit symbol(std::string initname, unsigned domain = domain::complex);
symbol(std::string initname, std::string texname, unsigned domain = domain::complex);
symbol(const std::string & initname, const std::string & texname, unsigned rt, unsigned domain);
symbol(std::string initname, unsigned rt, tinfo_t rtt, unsigned domain = domain::complex);
symbol(std::string initname, std::string texname, unsigned rt, tinfo_t rtt, unsigned domain = domain::complex);
// functions overriding virtual functions from base classes
public:
//int compare_same_type(const basic & other) const;
//int compare(const basic &other) const;
bool info(unsigned inf) const override;
ex eval(int level = 0) const override;
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 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, int level = 0) const override;
ex to_rational(exmap & repl) const override;
ex to_polynomial(exmap & repl) const override;
unsigned return_type() const override { return ret_type; }
tinfo_t return_type_tinfo() const override { return ret_type_tinfo; }
ex conjugate() const override;
ex real_part() const override;
ex imag_part() const override;
bool is_polynomial(const ex & var) const override;
protected:
ex derivative(const symbol & s) const override;
bool is_equal_same_type(const basic & other) const override;
long calchash() const override;
// non-virtual functions in this class
public:
//void assign(const ex & value);
//void unassign();
void set_name(const std::string & n) { name = n; }
std::string get_name() const { return name; }
unsigned get_domain() const { return domain; }
void set_domain(unsigned d);
void set_info(unsigned flag, bool value=true) { iflags.set(flag, value); }
std::string get_texname() const { return TeX_name; }
void set_texname(const std::string & t) { TeX_name = t; }
protected:
void do_print(const print_context & c, unsigned level) const override;
void do_print_latex(const print_latex & c, unsigned level) const;
void do_print_tree(const print_tree & c, unsigned level) const override;
void do_print_python_repr(const print_python_repr & c, unsigned level) const override;
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
std::string TeX_name; ///< LaTeX name of this symbol
unsigned domain; ///< domain of symbol
infoflagbase iflags; ///< bitset with info_flags
unsigned ret_type; ///< value returned by return_type()
tinfo_t ret_type_tinfo; ///< value returned by return_type_tinfo()
private:
static unsigned next_serial;
};
// utility functions
// keep symbols unique
const symbol & get_symbol(const std::string & s);
bool has_symbol(const ex & x);
} // namespace GiNaC
#endif // ndef __GINAC_SYMBOL_H__
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