// public
-constant::constant() : basic(&constant::tinfo_static), ef(0), serial(next_serial++)
+constant::constant() : basic(&constant::tinfo_static), ef(0), serial(next_serial++), domain(domain::complex)
{
setflag(status_flags::evaluated | status_flags::expanded);
}
// public
-constant::constant(const std::string & initname, evalffunctype efun, const std::string & texname)
- : basic(&constant::tinfo_static), name(initname), ef(efun), serial(next_serial++)
+constant::constant(const std::string & initname, evalffunctype efun, const std::string & texname, unsigned dm)
+ : basic(&constant::tinfo_static), name(initname), ef(efun), serial(next_serial++), domain(dm)
{
if (texname.empty())
TeX_name = "\\mbox{" + name + "}";
setflag(status_flags::evaluated | status_flags::expanded);
}
-constant::constant(const std::string & initname, const numeric & initnumber, const std::string & texname)
- : basic(&constant::tinfo_static), name(initname), ef(0), number(initnumber), serial(next_serial++)
+constant::constant(const std::string & initname, const numeric & initnumber, const std::string & texname, unsigned dm)
+ : basic(&constant::tinfo_static), name(initname), ef(0), number(initnumber), serial(next_serial++), domain(dm)
{
if (texname.empty())
TeX_name = "\\mbox{" + name + "}";
c.s << ')';
}
+bool constant::info(unsigned inf) const
+{
+ if (inf == info_flags::polynomial)
+ return true;
+ if (inf == info_flags::real)
+ return domain == domain::real;
+ else
+ return inherited::info(inf);
+}
+
ex constant::evalf(int level) const
{
if (ef!=0) {
//////////
/** Pi. (3.14159...) Diverts straight into CLN for evalf(). */
-const constant Pi("Pi", PiEvalf, "\\pi");
+const constant Pi("Pi", PiEvalf, "\\pi", domain::real);
/** Euler's constant. (0.57721...) Sometimes called Euler-Mascheroni constant.
* Diverts straight into CLN for evalf(). */
-const constant Euler("Euler", EulerEvalf, "\\gamma_E");
+const constant Euler("Euler", EulerEvalf, "\\gamma_E", domain::real);
/** Catalan's constant. (0.91597...) Diverts straight into CLN for evalf(). */
-const constant Catalan("Catalan", CatalanEvalf, "G");
+const constant Catalan("Catalan", CatalanEvalf, "G", domain::real);
} // namespace GiNaC
// other constructors
public:
- constant(const std::string & initname, evalffunctype efun = 0, const std::string & texname = std::string());
- constant(const std::string & initname, const numeric & initnumber, const std::string & texname = std::string());
+ constant(const std::string & initname, evalffunctype efun = 0, 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 base classes
public:
+ bool info(unsigned inf) const;
ex evalf(int level = 0) const;
bool is_polynomial(const ex & var) const;
protected:
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
};
extern const constant Pi;