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[ginac.git] / ginac / polynomial / optimal_vars_finder.cpp

diff --git a/ginac/polynomial/optimal_vars_finder.cpp b/ginac/polynomial/optimal_vars_finder.cpp
index 09b9590b07de3eb5ee97cae3a8f9040f10fccf70..9873004c8edd074a69f20136d926f1769af83253 100644 (file)
--- a/ginac/polynomial/optimal_vars_finder.cpp
+++ b/ginac/polynomial/optimal_vars_finder.cpp
@@ -3,7 +3,7 @@
  *  Functions to optimize the choice of variable for multivariate GCD. */
 
 /*
- *  GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2021 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
@@ -46,6 +46,11 @@ namespace {
  *  @see get_symbol_stats */
 struct sym_desc 
 {
+       /** Initialize symbol, leave other variables uninitialized */
+       sym_desc(const ex& s)
+         : sym(s), deg_a(0), deg_b(0), ldeg_a(0), ldeg_b(0), max_deg(0), max_lcnops(0)
+       { }
+
        /** Reference to symbol */
        ex sym;
 
@@ -67,7 +72,7 @@ struct sym_desc
        /** Maximum number of terms of leading coefficient of symbol in both polynomials */
        std::size_t max_lcnops;
 
-       /** Commparison operator for sorting */
+       /** Comparison operator for sorting */
        bool operator<(const sym_desc &x) const
        {
                if (max_deg == x.max_deg)
@@ -87,9 +92,7 @@ static void add_symbol(const ex &s, sym_desc_vec &v)
                if (it.sym.is_equal(s))  // If it's already in there, don't add it a second time
                        return;
        }
-       sym_desc d;
-       d.sym = s;
-       v.push_back(d);
+       v.push_back(sym_desc(s));
 }
 
 // Collect all symbols of an expression (used internally by get_symbol_stats())