cppcheck complains about some possible speed improvements which could be

done on the mirco-optimazation level, so lets fix them:
 (performance) Possible inefficient checking for emptiness.
 (performance) Prefer prefix ++/-- operators for non-primitive types.

1 files changed, 3 insertions, 3 deletions

diff --git a/apt-pkg/contrib/error.cc b/apt-pkg/contrib/error.cc
index 18810d2a4..edb290f34 100644
--- a/apt-pkg/contrib/error.cc
+++ b/apt-pkg/contrib/error.cc
@@ -193,7 +193,7 @@ bool GlobalError::PopMessage(std::string &Text) {
 
 	// check if another error message is pending
 	for (std::list<Item>::const_iterator m = Messages.begin();
-	     m != Messages.end(); m++)
+	     m != Messages.end(); ++m)
 		if (m->Type == ERROR || m->Type == FATAL)
 			return Ret;
 
@@ -210,7 +210,7 @@ void GlobalError::DumpErrors(std::ostream &out, MsgType const &threshold,
 			Messages.insert(Messages.begin(), s->Messages.begin(), s->Messages.end());
 
 	for (std::list<Item>::const_iterator m = Messages.begin();
-	     m != Messages.end(); m++)
+	     m != Messages.end(); ++m)
 		if (m->Type >= threshold)
 			out << (*m) << std::endl;
 	Discard();
@@ -231,7 +231,7 @@ bool GlobalError::empty(MsgType const &trashhold) const {
 		return true;
 
 	for (std::list<Item>::const_iterator m = Messages.begin();
-	     m != Messages.end(); m++)
+	     m != Messages.end(); ++m)
 		if (m->Type >= trashhold)
 			return false;