squash -Wcompare, -Wconversion, -Wsign-convertion warnings

diff --git a/lib/twopigen/circle.c b/lib/twopigen/circle.c
index 698cd166dbd7cf36c523aa888a837de77a9e7ffd..18a0e7be94b6a3574b99df06ce9018b0fe4e4ae6 100644 (file)
--- a/lib/twopigen/circle.c
+++ b/lib/twopigen/circle.c
@@ -160,7 +160,7 @@ static void setNStepsToCenter(Agraph_t * g, Agnode_t * n)
     qd.head = qd.tail = NULL;
     push(q,n);
     while ((n = (Agnode_t*)pull(q))) {
-       int nsteps = SCENTER(n) + 1;
+       uint64_t nsteps = SCENTER(n) + 1;
        for (ep = agfstedge(g, n); ep; ep = agnxtedge(g, ep, n)) {
            if (wt && streq(ag_xget(ep,wt),"0")) continue;
            if ((next = agtail(ep)) == n)