Use C++11 range-based foor loops and auto, where possible.

[ginac.git] / ginac / symbol.cpp

diff --git a/ginac/symbol.cpp b/ginac/symbol.cpp
index c9db110fdc43a1cfb581128d48f592553644cfae..4dd0691c648ac435b4ef60cbaf1074f6fed28ff5 100644 (file)
--- a/ginac/symbol.cpp
+++ b/ginac/symbol.cpp
@@ -3,7 +3,7 @@
  *  Implementation of GiNaC's symbolic objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2010 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2015 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
@@ -106,9 +106,9 @@ void symbol::read_archive(const archive_node &n, lst &sym_lst)
        n.find_string("name", tmp_name);
 
        // If symbol is in sym_lst, return the existing symbol
-       for (lst::const_iterator it = sym_lst.begin(); it != sym_lst.end(); ++it) {
-               if (is_a<symbol>(*it) && (ex_to<symbol>(*it).name == tmp_name)) {
-                       *this = ex_to<symbol>(*it);
+       for (auto & s : sym_lst) {
+               if (is_a<symbol>(s) && (ex_to<symbol>(s).name == tmp_name)) {
+                       *this = ex_to<symbol>(s);
                        // XXX: This method is responsible for reading realsymbol
                        // and possymbol objects too. But
                        // basic::operator=(const basic& other)
@@ -150,12 +150,21 @@ static const std::string& get_default_TeX_name(const std::string& name);
 
 // public
 
+std::string symbol::get_name() const
+{
+       if (name.empty()) {
+               std::ostringstream s;
+               s << "symbol" << serial;
+               name = s.str();
+       }
+       return name;
+}
+
+// protected
+
 void symbol::do_print(const print_context & c, unsigned level) const
 {
-       if (!name.empty())
-               c.s << name;
-       else
-               c.s << "symbol" << serial;
+       c.s << get_name();
 }
 
 void symbol::do_print_latex(const print_latex & c, unsigned level) const