* No real implementation yet, to be done. */
/*
- * GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2001 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 "clifford.h"
#include "ex.h"
#include "ncmul.h"
+#include "archive.h"
#include "utils.h"
#include "debugmsg.h"
namespace GiNaC {
+GINAC_IMPLEMENT_REGISTERED_CLASS(clifford, lortensor)
+
//////////
// default constructor, destructor, copy constructor assignment operator and helpers
//////////
clifford::clifford()
{
- debugmsg("clifford default constructor",LOGLEVEL_CONSTRUCT);
- serial=next_serial++;
- name=autoname_prefix()+ToString(serial);
- tinfo_key=TINFO_clifford;
-}
-
-clifford::~clifford()
-{
- debugmsg("clifford destructor",LOGLEVEL_DESTRUCT);
- destroy(0);
-}
-
-clifford::clifford(clifford const & other)
-{
- debugmsg("clifford copy constructor",LOGLEVEL_CONSTRUCT);
- copy (other);
-}
-
-clifford const & clifford::operator=(clifford const & other)
-{
- debugmsg("clifford operator=",LOGLEVEL_ASSIGNMENT);
- if (this != &other) {
- destroy(1);
- copy(other);
- }
- return *this;
+ debugmsg("clifford default constructor",LOGLEVEL_CONSTRUCT);
+ tinfo_key = TINFO_clifford;
}
// protected
-void clifford::copy(clifford const & other)
+void clifford::copy(const clifford & other)
{
- indexed::copy(other);
- name=other.name;
- serial=other.serial;
+ inherited::copy(other);
}
void clifford::destroy(bool call_parent)
{
- if (call_parent) {
- indexed::destroy(call_parent);
- }
+ if (call_parent) inherited::destroy(call_parent);
}
//////////
// public
-clifford::clifford(string const & initname)
+clifford::clifford(const std::string & n, const ex & mu) : inherited(lortensor_symbolic, n, mu)
{
- debugmsg("clifford constructor from string",LOGLEVEL_CONSTRUCT);
- name=initname;
- serial=next_serial++;
- tinfo_key=TINFO_clifford;
+ debugmsg("clifford constructor from string,ex",LOGLEVEL_CONSTRUCT);
+ tinfo_key=TINFO_clifford;
+}
+
+clifford::clifford(const std::string & n, const exvector & iv) : inherited(lortensor_symbolic, n, iv)
+{
+ debugmsg("clifford constructor from string,exvector", LOGLEVEL_CONSTRUCT);
+ GINAC_ASSERT(all_of_type_lorentzidx());
+ tinfo_key=TINFO_clifford;
+}
+
+clifford::clifford(const std::string & n, exvector *ivp) : inherited(lortensor_symbolic, n, *ivp)
+{
+ debugmsg("clifford constructor from string,exvector", LOGLEVEL_CONSTRUCT);
+ GINAC_ASSERT(all_of_type_lorentzidx());
+ tinfo_key=TINFO_clifford;
}
//////////
-// functions overriding virtual functions from bases classes
+// archiving
//////////
-// public
+/** Construct object from archive_node. */
+clifford::clifford(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst)
+{
+ debugmsg("clifford constructor from archive_node", LOGLEVEL_CONSTRUCT);
+}
-basic * clifford::duplicate() const
+/** Unarchive the object. */
+ex clifford::unarchive(const archive_node &n, const lst &sym_lst)
{
- debugmsg("clifford duplicate",LOGLEVEL_DUPLICATE);
- return new clifford(*this);
+ return (new clifford(n, sym_lst))->setflag(status_flags::dynallocated);
}
-void clifford::printraw(ostream & os) const
+/** Archive the object. */
+void clifford::archive(archive_node &n) const
{
- debugmsg("clifford printraw",LOGLEVEL_PRINT);
- os << "clifford(" << "name=" << name << ",serial=" << serial
- << ",indices=";
- printrawindices(os);
- os << ",hash=" << hashvalue << ",flags=" << flags << ")";
+ inherited::archive(n);
}
-void clifford::printtree(ostream & os, unsigned indent) const
+//////////
+// functions overriding virtual functions from bases classes
+//////////
+
+// public
+
+void clifford::printraw(std::ostream & os) const
{
- debugmsg("clifford printtree",LOGLEVEL_PRINT);
- os << string(indent,' ') << name << " (clifford): "
- << "serial=" << serial << ","
- << seq.size() << "indices=";
- printtreeindices(os,indent);
- os << ", hash=" << hashvalue << " (0x" << hex << hashvalue << dec << ")"
- << ", flags=" << flags << endl;
+ debugmsg("clifford printraw",LOGLEVEL_PRINT);
+ os << "clifford(" << "indices=";
+ printrawindices(os);
+ os << ",hash=" << hashvalue << ",flags=" << flags << ")";
}
-void clifford::print(ostream & os, unsigned upper_precedence) const
+void clifford::printtree(std::ostream & os, unsigned indent) const
{
- debugmsg("clifford print",LOGLEVEL_PRINT);
- os << name;
- printindices(os);
+ debugmsg("clifford printtree",LOGLEVEL_PRINT);
+ os << std::string(indent,' ') << " (clifford): "
+ << seq.size() << "indices=";
+ printtreeindices(os, indent);
+ os << ", hash=" << hashvalue
+ << " (0x" << std::hex << hashvalue << std::dec << ")"
+ << ", flags=" << flags << std::endl;
}
-void clifford::printcsrc(ostream & os, unsigned type, unsigned upper_precedence) const
+void clifford::print(std::ostream & os, unsigned upper_precedence) const
{
- debugmsg("clifford print csrc",LOGLEVEL_PRINT);
- print(os,upper_precedence);
+ debugmsg("clifford print",LOGLEVEL_PRINT);
+ os << name;
+ printindices(os);
}
bool clifford::info(unsigned inf) const
{
- return indexed::info(inf);
+ return inherited::info(inf);
}
// protected
-int clifford::compare_same_type(basic const & other) const
+int clifford::compare_same_type(const basic & other) const
{
- ASSERT(other.tinfo() == TINFO_clifford);
- const clifford *o = static_cast<const clifford *>(&other);
- if (serial==o->serial) {
- return indexed::compare_same_type(other);
- }
- return serial < o->serial ? -1 : 1;
+ GINAC_ASSERT(is_of_type(other,clifford));
+ // only compare indices
+ return exprseq::compare_same_type(other);
}
-ex clifford::simplify_ncmul(exvector const & v) const
+bool clifford::is_equal_same_type(const basic & other) const
{
- return simplified_ncmul(v);
+ GINAC_ASSERT(is_of_type(other,clifford));
+ // only compare indices
+ return exprseq::is_equal_same_type(other);
}
-unsigned clifford::calchash(void) const
+ex clifford::thisexprseq(const exvector & v) const
{
- hashvalue=golden_ratio_hash(golden_ratio_hash(0x55555556U ^
- golden_ratio_hash(tinfo_key) ^
- serial));
- setflag(status_flags::hash_calculated);
- return hashvalue;
+ return clifford(name, v);
}
-//////////
-// virtual functions which can be overridden by derived classes
-//////////
-
-// none
-
-//////////
-// non-virtual functions in this class
-//////////
-
-void clifford::setname(string const & n)
+ex clifford::thisexprseq(exvector *vp) const
{
- name=n;
+ return clifford(name, vp);
}
-// private
-
-string & clifford::autoname_prefix(void)
+ex clifford::simplify_ncmul(const exvector & v) const
{
- static string * s=new string("clifford");
- return *s;
+ return simplified_ncmul(v);
}
//////////
-// static member variables
-//////////
-
-// private
-
-unsigned clifford::next_serial=0;
-
-//////////
-// global constants
+// friend functions
//////////
-const clifford some_clifford;
-type_info const & typeid_clifford=typeid(some_clifford);
+/** Construct an object representing a Dirac gamma matrix. The index must
+ * be of class lorentzidx.
+ *
+ * @param mu Index
+ * @return newly constructed object */
+clifford clifford_gamma(const ex & mu)
+{
+ return clifford("gamma", mu);
+}
} // namespace GiNaC
git://www.ginac.de / ginac.git / blobdiff