X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Fex.cpp;h=290154b4838e863859db143e181ea337e8ef9e75;hb=052e9928511dd77d1d5d489b2a61b75579cc44e3;hp=acdb377dbf147a68535b8d2219cce02422fadb23;hpb=67edef78ce992a8f6ad704bfac228b8dec6eacd2;p=ginac.git

diff --git a/ginac/ex.cpp b/ginac/ex.cpp
index acdb377d..290154b4 100644
--- a/ginac/ex.cpp
+++ b/ginac/ex.cpp
@@ -3,7 +3,7 @@
  *  Implementation of GiNaC's light-weight expression handles. */
 
 /*
- *  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
@@ -162,8 +162,7 @@ ex ex::subs(const ex & e, unsigned options) const
 		// Argument is a list: convert it to a map
 		exmap m;
 		GINAC_ASSERT(is_a<lst>(e));
-		for (lst::const_iterator it = ex_to<lst>(e).begin(); it != ex_to<lst>(e).end(); ++it) {
-			ex r = *it;
+		for (auto & r : ex_to<lst>(e)) {
 			if (!r.info(info_flags::relation_equal))
 				throw(std::invalid_argument("basic::subs(ex): argument must be a list of equations"));
 			const ex & s = r.op(0);
@@ -203,7 +202,7 @@ void ex::traverse_postorder(visitor & v) const
 	accept(v);
 }
 
-/** Return modifyable operand/member at position i. */
+/** Return modifiable operand/member at position i. */
 ex & ex::let_op(size_t i)
 {
 	makewriteable();
@@ -243,8 +242,8 @@ bool ex::is_polynomial(const ex & vars) const
 {
 	if (is_a<lst>(vars)) {
 		const lst & varlst = ex_to<lst>(vars);
-		for (lst::const_iterator i=varlst.begin(); i!=varlst.end(); ++i)
-			if (!bp->is_polynomial(*i))
+		for (auto & it : varlst)
+			if (!bp->is_polynomial(it))
 				return false;
 		return true;
 	}