Resolved one -Wsign-conversion in cvt.c

There are multiple -Wsign-conversion warnings, but only one could be resolved without analysing or changing more than a few lines of code.

diff --git a/lib/pathplan/cvt.c b/lib/pathplan/cvt.c
index b5516ab2a76c8bfad966d0f9aecc752bac3b06e5..f5115d33d8541989e0876a11fca0e3ef79a5813b 100644 (file)
--- a/lib/pathplan/cvt.c
+++ b/lib/pathplan/cvt.c
@@ -118,7 +118,7 @@ int Pobspath(vconfig_t * config, Ppoint_t p0, int poly0, Ppoint_t p1,
             int poly1, Ppolyline_t * output_route)
 {
     int i, j, *dad;
-    int opn;
+    size_t opn;
     Ppoint_t *ops;
     COORD *ptvis0, *ptvis1;