fixed typo

[ginac.git] / ginac / symbol.cpp

diff --git a/ginac/symbol.cpp b/ginac/symbol.cpp
index 94d01e4cfe8cefb74f302182c27f7cb511e6cef5..48579ccf65ae658fc571413cf9a22f6f711069c8 100644 (file)
--- a/ginac/symbol.cpp
+++ b/ginac/symbol.cpp
@@ -3,7 +3,7 @@
  *  Implementation of GiNaC's symbolic objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2002 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2003 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
@@ -32,7 +32,7 @@
 
 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
@@ -53,7 +53,7 @@ void symbol::copy(const symbol & other)
        TeX_name = other.TeX_name;
        serial = other.serial;
        asexinfop = other.asexinfop;
-       ++asexinfop->refcount;
+       ++(asexinfop->refcount);
 }
 
 void symbol::destroy(bool call_parent)
@@ -70,11 +70,6 @@ void symbol::destroy(bool call_parent)
 
 // public
 
-symbol::symbol(const symbol & other)
-{
-       copy(other);
-}
-
 symbol::symbol(const std::string & initname) : inherited(TINFO_symbol)
 {
        name = initname;
@@ -137,11 +132,6 @@ void symbol::archive(archive_node &n) const
 
 // public
 
-basic *symbol::duplicate() const
-{
-       return new symbol(*this);
-}
-
 void symbol::print(const print_context & c, unsigned level) const
 {
        if (is_a<print_tree>(c)) {