Compiler warning fix in Perl out typemap for std::vector

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@11011 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/ignore_template_constructor.i

@@ -37,3 +37,9 @@ public:
 #endif
 
 %template(VectFlow) std::vector<Flow>;
+
+%inline %{
+std::vector<Flow> inandout(std::vector<Flow> v) {
+  return v;
+}
+%}

Lib/perl5/std_vector.i

@@ -105,9 +105,9 @@ namespace std {
             }
         }
         %typemap(out) vector<T> {
-            int len = $1.size();
+            size_t len = $1.size();
             SV **svs = new SV*[len];
-            for (unsigned int i=0; i<len; i++) {
+            for (size_t i=0; i<len; i++) {
                 T* ptr = new T($1[i]);
                 svs[i] = sv_newmortal();
                 SWIG_MakePtr(svs[i], (void*) ptr,