* Interface to GiNaC's constant types and some special constants. */
/*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2022 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
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef __GINAC_CONSTANT_H__
-#define __GINAC_CONSTANT_H__
+#ifndef GINAC_CONSTANT_H
+#define GINAC_CONSTANT_H
-#include <string>
#include "basic.h"
#include "ex.h"
+#include "archive.h"
+
+#include <string>
namespace GiNaC {
-typedef ex (*evalffunctype)(void);
+typedef ex (*evalffunctype)();
/** This class holds constants, symbols with specific numerical value. Each
* object of this class must either provide their own function to evaluate it
class constant : public basic
{
GINAC_DECLARE_REGISTERED_CLASS(constant, basic)
-
-// member functions
-
- // other ctors
+ // other constructors
public:
- constant(const std::string & initname, evalffunctype efun = 0);
- constant(const std::string & initname, const numeric & initnumber);
+ constant(const std::string & initname, evalffunctype efun = nullptr, const std::string & texname = std::string(), unsigned domain = domain::complex);
+ constant(const std::string & initname, const numeric & initnumber, const std::string & texname = std::string(), unsigned domain = domain::complex);
- // functions overriding virtual functions from bases classes
+ // functions overriding virtual functions from base classes
public:
- void print(const print_context & c, unsigned level = 0) const;
- int degree(const ex & s) const;
- int ldegree(const ex & s) const;
- ex coeff(const ex & s, int n = 1) const;
- ex evalf(int level = 0) const;
+ bool info(unsigned inf) const override;
+ ex evalf() const override;
+ bool is_polynomial(const ex & var) const override;
+ ex conjugate() const override;
+ ex real_part() const override;
+ ex imag_part() const override;
+ void archive(archive_node& n) const override;
+ 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(void) const;
-
- // new virtual functions which can be overridden by derived classes
- // none
+ ex derivative(const symbol & s) const override;
+ bool is_equal_same_type(const basic & other) const override;
+ unsigned calchash() const override;
// non-virtual functions in this class
- // none
-
+protected:
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_tree(const print_tree & c, unsigned level) const;
+ void do_print_latex(const print_latex & c, unsigned level) const;
+ void do_print_python_repr(const print_python_repr & c, unsigned level) const;
+
// member variables
-
private:
- std::string name; ///< printname of this constant
+ std::string name; ///< printname of this constant
+ std::string TeX_name; ///< LaTeX name
evalffunctype ef;
- numeric *number; ///< numerical value this constant evalf()s to
- unsigned serial; ///< unique serial number for comparison
+ ex number; ///< numerical value this constant evalf()s to
+ unsigned serial; ///< unique serial number for comparison
static unsigned next_serial;
+ unsigned domain; ///< numerical value this constant evalf()s to
};
+GINAC_DECLARE_UNARCHIVER(constant);
extern const constant Pi;
extern const constant Catalan;
extern const constant Euler;
-// utility functions
-inline const constant &ex_to_constant(const ex &e)
-{
- return static_cast<const constant &>(*e.bp);
-}
-
} // namespace GiNaC
-#endif // ndef __GINAC_CONSTANT_H__
+#endif // ndef GINAC_CONSTANT_H