Remove spurious test.

0612bca0 · Sébastien Villemot · 380df907 · 0612bca0
Commit 0612bca0 authored Mar 11, 2014 by Sébastien Villemot
--- a/ExprNode.cc
+++ b/ExprNode.cc
@@ -4320,7 +4320,6 @@ ExternalFunctionNode::composeDerivatives(const vector<expr_t> &dargs)
 {
  vector<expr_t> dNodes;
  for (int i = 0; i < (int) dargs.size(); i++)
-    if (dargs.at(i) != 0)
    dNodes.push_back(datatree.AddTimes(dargs.at(i),
                                       datatree.AddFirstDerivExternalFunctionNode(symb_id, arguments, i+1)));

@@ -4911,7 +4910,6 @@ FirstDerivExternalFunctionNode::composeDerivatives(const vector<expr_t> &dargs)
 {
  vector<expr_t> dNodes;
  for (int i = 0; i < (int) dargs.size(); i++)
-    if (dargs.at(i) != 0)
    dNodes.push_back(datatree.AddTimes(dargs.at(i),
                                       datatree.AddSecondDerivExternalFunctionNode(symb_id, arguments, inputIndex, i+1)));
  expr_t theDeriv = datatree.Zero;