Fixed a couple minor compiler warnings.

diff --git a/simgear/misc/props.cxx b/simgear/misc/props.cxx
index 6b8ce67753b4e25034d2a74d16acdbd3a8ba608e..0abecaa11675fcb20bbd42d4c1b573a5ea6e8122 100644 (file)
--- a/simgear/misc/props.cxx
+++ b/simgear/misc/props.cxx
@@ -2040,7 +2040,7 @@ void
 SGPropertyNode::fireValueChanged (SGPropertyNode * node)
 {
   if (_listeners != 0) {
-    for (int i = 0; i < _listeners->size(); i++) {
+    for (unsigned int i = 0; i < _listeners->size(); i++) {
       (*_listeners)[i]->valueChanged(node);
     }
   }
@@ -2053,7 +2053,7 @@ SGPropertyNode::fireChildAdded (SGPropertyNode * parent,
                                SGPropertyNode * child)
 {
   if (_listeners != 0) {
-    for (int i = 0; i < _listeners->size(); i++) {
+    for (unsigned int i = 0; i < _listeners->size(); i++) {
       (*_listeners)[i]->childAdded(parent, child);
     }
   }
@@ -2066,7 +2066,7 @@ SGPropertyNode::fireChildRemoved (SGPropertyNode * parent,
                                  SGPropertyNode * child)
 {
   if (_listeners != 0) {
-    for (int i = 0; i < _listeners->size(); i++) {
+    for (unsigned int i = 0; i < _listeners->size(); i++) {
       (*_listeners)[i]->childRemoved(parent, child);
     }
   }