* Implementation of GiNaC's symbolic objects. */
/*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2002 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
#include "lst.h"
#include "print.h"
#include "archive.h"
-#include "debugmsg.h"
+#include "tostring.h"
#include "utils.h"
namespace GiNaC {
-GINAC_IMPLEMENT_REGISTERED_CLASS_NO_CTORS(symbol, basic)
+GINAC_IMPLEMENT_REGISTERED_CLASS(symbol, basic)
//////////
-// default ctor, dtor, copy ctor assignment operator and helpers
+// default ctor, dtor, copy ctor, assignment operator and helpers
//////////
symbol::symbol() : inherited(TINFO_symbol), serial(next_serial++)
{
- debugmsg("symbol default ctor", LOGLEVEL_CONSTRUCT);
name = TeX_name = autoname_prefix()+ToString(serial);
asexinfop = new assigned_ex_info;
setflag(status_flags::evaluated | status_flags::expanded);
TeX_name = other.TeX_name;
serial = other.serial;
asexinfop = other.asexinfop;
- ++asexinfop->refcount;
+ ++(asexinfop->refcount);
}
void symbol::destroy(bool call_parent)
// public
-symbol::symbol(const symbol & other)
-{
- debugmsg("symbol copy ctor", LOGLEVEL_CONSTRUCT);
- copy(other);
-}
-
symbol::symbol(const std::string & initname) : inherited(TINFO_symbol)
{
- debugmsg("symbol ctor from string", LOGLEVEL_CONSTRUCT);
name = initname;
TeX_name = default_TeX_name();
serial = next_serial++;
symbol::symbol(const std::string & initname, const std::string & texname) : inherited(TINFO_symbol)
{
- debugmsg("symbol ctor from string", LOGLEVEL_CONSTRUCT);
name = initname;
TeX_name = texname;
serial = next_serial++;
/** Construct object from archive_node. */
symbol::symbol(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst)
{
- debugmsg("symbol ctor from archive_node", LOGLEVEL_CONSTRUCT);
serial = next_serial++;
if (!(n.find_string("name", name)))
name = autoname_prefix() + ToString(serial);
// If symbol is in sym_lst, return the existing symbol
for (unsigned i=0; i<sym_lst.nops(); i++) {
- if (is_ex_of_type(sym_lst.op(i), symbol) && (ex_to_symbol(sym_lst.op(i)).name == ex_to_symbol(s).name))
+ if (is_ex_of_type(sym_lst.op(i), symbol) && (ex_to<symbol>(sym_lst.op(i)).name == ex_to<symbol>(s).name))
return sym_lst.op(i);
}
return s;
}
//////////
-// functions overriding virtual functions from bases classes
+// functions overriding virtual functions from base classes
//////////
// public
-basic *symbol::duplicate() const
-{
- debugmsg("symbol duplicate", LOGLEVEL_DUPLICATE);
- return new symbol(*this);
-}
-
void symbol::print(const print_context & c, unsigned level) const
{
- debugmsg("symbol print", LOGLEVEL_PRINT);
-
- if (is_of_type(c, print_tree)) {
+ if (is_a<print_tree>(c)) {
c.s << std::string(level, ' ') << name << " (" << class_name() << ")"
<< ", serial=" << serial
<< std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec
<< std::endl;
- } else if (is_of_type(c, print_latex))
+ } else if (is_a<print_latex>(c)) {
c.s << TeX_name;
- else
+ } else if (is_a<print_python_repr>(c)) {
+ c.s << class_name() << "('" << name;
+ if (TeX_name != default_TeX_name())
+ c.s << "','" << TeX_name;
+ c.s << "')";
+ } else
c.s << name;
}
return inherited::info(inf);
}
-ex symbol::expand(unsigned options) const
-{
- return this->hold();
-}
-
-bool symbol::has(const ex & other) const
-{
- if (this->is_equal(*other.bp))
- return true;
- else
- return false;
-}
-
-int symbol::degree(const ex & s) const
-{
- return is_equal(*s.bp) ? 1 : 0;
-}
-
-int symbol::ldegree(const ex & s) const
-{
- return is_equal(*s.bp) ? 1 : 0;
-}
-
-ex symbol::coeff(const ex & s, int n) const
-{
- if (is_equal(*s.bp))
- return n==1 ? _ex1() : _ex0();
- else
- return n==0 ? *this : _ex0();
-}
-
ex symbol::eval(int level) const
{
if (level == -max_recursion_level)
ex symbol::derivative(const symbol & s) const
{
if (compare_same_type(s))
- return _ex0();
+ return _ex0;
else
- return _ex1();
+ return _ex1;
}
int symbol::compare_same_type(const basic & other) const
{
- GINAC_ASSERT(is_of_type(other,symbol));
+ GINAC_ASSERT(is_a<symbol>(other));
const symbol *o = static_cast<const symbol *>(&other);
if (serial==o->serial) return 0;
return serial < o->serial ? -1 : 1;
bool symbol::is_equal_same_type(const basic & other) const
{
- GINAC_ASSERT(is_of_type(other,symbol));
+ GINAC_ASSERT(is_a<symbol>(other));
const symbol *o = static_cast<const symbol *>(&other);
return serial==o->serial;
}
-unsigned symbol::return_type(void) const
-{
- return return_types::commutative;
-}
-
-unsigned symbol::return_type_tinfo(void) const
-{
- return tinfo_key;
-}
-
unsigned symbol::calchash(void) const
{
// this is where the schoolbook method
{
if (asexinfop->is_assigned) {
asexinfop->is_assigned = 0;
- asexinfop->assigned_expression = _ex0();
+ asexinfop->assigned_expression = _ex0;
}
setflag(status_flags::evaluated | status_flags::expanded);
}
git://www.ginac.de / ginac.git / blobdiff