- archiving implemented in lorentzidx

[ginac.git] / ginac / lorentzidx.cpp

diff --git a/ginac/lorentzidx.cpp b/ginac/lorentzidx.cpp
index 6d09ee1f271ada48f3a2276a6f45601220fff621..52487dde554c66b2a727bc06c6139a4c2818e4b1 100644 (file)
--- a/ginac/lorentzidx.cpp
+++ b/ginac/lorentzidx.cpp
@@ -3,7 +3,7 @@
  *  Implementation of GiNaC's lorentz indices. */
 
 /*
- *  GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2000 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
@@ -23,10 +23,16 @@
 #include <stdexcept>
 
 #include "lorentzidx.h"
+#include "lst.h"
+#include "archive.h"
 #include "utils.h"
 #include "debugmsg.h"
 
+#ifndef NO_GINAC_NAMESPACE
 namespace GiNaC {
+#endif // ndef NO_GINAC_NAMESPACE
+
+GINAC_IMPLEMENT_REGISTERED_CLASS(lorentzidx, idx)
 
 //////////
 // default constructor, destructor, copy constructor assignment operator and helpers
@@ -48,13 +54,13 @@ lorentzidx::~lorentzidx()
     destroy(0);
 }
 
-lorentzidx::lorentzidx(lorentzidx const & other)
+lorentzidx::lorentzidx(const lorentzidx & other)
 {
     debugmsg("lorentzidx copy constructor",LOGLEVEL_CONSTRUCT);
     copy(other);
 }
 
-lorentzidx const & lorentzidx::operator=(lorentzidx const & other)
+const lorentzidx & lorentzidx::operator=(const lorentzidx & other)
 {
     debugmsg("lorentzidx operator=",LOGLEVEL_ASSIGNMENT);
     if (this != &other) {
@@ -66,16 +72,16 @@ lorentzidx const & lorentzidx::operator=(lorentzidx const & other)
 
 // protected
 
-void lorentzidx::copy(lorentzidx const & other)
+void lorentzidx::copy(const lorentzidx & other)
 {
-    idx::copy(other);
+    inherited::copy(other);
     orthogonal_only=other.orthogonal_only;
     dim_parallel_space=other.dim_parallel_space;
 }
 
 void lorentzidx::destroy(bool call_parent)
 {
-    if (call_parent) idx::destroy(call_parent);
+    if (call_parent) inherited::destroy(call_parent);
 }
 
 //////////
@@ -97,7 +103,7 @@ lorentzidx::lorentzidx(bool cov, bool oonly, unsigned dimp) :
     tinfo_key=TINFO_lorentzidx;
 }
 
-lorentzidx::lorentzidx(string const & n, bool cov, bool oonly, unsigned dimp)
+lorentzidx::lorentzidx(const string & n, bool cov, bool oonly, unsigned dimp)
     : idx(n,cov), orthogonal_only(oonly), dim_parallel_space(dimp)
 {
     debugmsg("lorentzidx constructor from string,bool,bool,unsigned",
@@ -105,7 +111,7 @@ lorentzidx::lorentzidx(string const & n, bool cov, bool oonly, unsigned dimp)
     tinfo_key=TINFO_lorentzidx;
 }
 
-lorentzidx::lorentzidx(char const * n, bool cov, bool oonly, unsigned dimp)
+lorentzidx::lorentzidx(const char * n, bool cov, bool oonly, unsigned dimp)
     : idx(n,cov), orthogonal_only(oonly), dim_parallel_space(dimp)
 {
     debugmsg("lorentzidx constructor from char*,bool,bool,unsigned",
@@ -113,13 +119,50 @@ lorentzidx::lorentzidx(char const * n, bool cov, bool oonly, unsigned dimp)
     tinfo_key=TINFO_lorentzidx;
 }
 
-lorentzidx::lorentzidx(unsigned const v, bool cov) : idx(v,cov),
+lorentzidx::lorentzidx(unsigned v, bool cov) : idx(v,cov),
     orthogonal_only(false), dim_parallel_space(0)
 {
     debugmsg("lorentzidx constructor from unsigned,bool",LOGLEVEL_CONSTRUCT);
     tinfo_key=TINFO_lorentzidx;
 }
 
+//////////
+// archiving
+//////////
+
+/** Construct object from archive_node. */
+lorentzidx::lorentzidx(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst)
+{
+    debugmsg("lorentzidx constructor from archive_node", LOGLEVEL_CONSTRUCT);
+    n.find_bool("orthogonal_only", orthogonal_only);
+       if (orthogonal_only)
+               n.find_unsigned("pdim", dim_parallel_space);
+}
+
+/** Unarchive the object. */
+ex lorentzidx::unarchive(const archive_node &n, const lst &sym_lst)
+{
+    ex s = (new lorentzidx(n, sym_lst))->setflag(status_flags::dynallocated);
+
+    if (ex_to_lorentzidx(s).symbolic) {
+        // If lorentzidx is in sym_lst, return the existing lorentzidx
+        for (int i=0; i<sym_lst.nops(); i++) {
+            if (is_ex_of_type(sym_lst.op(i), lorentzidx) && (ex_to_lorentzidx(sym_lst.op(i)).name == ex_to_lorentzidx(s).name))
+                return sym_lst.op(i);
+        }
+    }
+    return s;
+}
+
+/** Archive the object. */
+void lorentzidx::archive(archive_node &n) const
+{
+    inherited::archive(n);
+       n.add_bool("orthogonal_only", orthogonal_only);
+       if (orthogonal_only)
+               n.add_unsigned("pdim", dim_parallel_space);
+}
+
 //////////
 // functions overriding virtual functions from bases classes
 //////////
@@ -211,7 +254,7 @@ void lorentzidx::print(ostream & os, unsigned upper_precedence) const
 bool lorentzidx::info(unsigned inf) const
 {
     if (inf==info_flags::lorentzidx) return true;
-    return idx::info(inf);
+    return inherited::info(inf);
 }
 
 //////////
@@ -249,6 +292,8 @@ lorentzidx lorentzidx::create_anonymous_representative(void) const
 //////////
 
 const lorentzidx some_lorentzidx;
-type_info const & typeid_lorentzidx=typeid(some_lorentzidx);
+const type_info & typeid_lorentzidx=typeid(some_lorentzidx);
 
+#ifndef NO_GINAC_NAMESPACE
 } // namespace GiNaC
+#endif // ndef NO_GINAC_NAMESPACE