glu/sgi: Silence warn_unused_result warnings.

diff --git a/src/glu/sgi/libnurbs/nurbtess/directedLine.cc b/src/glu/sgi/libnurbs/nurbtess/directedLine.cc
index 1ceda02..d942db7 100644 (file)
--- a/src/glu/sgi/libnurbs/nurbtess/directedLine.cc
+++ b/src/glu/sgi/libnurbs/nurbtess/directedLine.cc
@@ -793,22 +793,30 @@ directedLine* readAllPolygons(char* filename)
 {
   Int i,j;
   FILE* fp = fopen(filename, "r");
-  assert(fp);
   Int nPolygons;
-  fscanf(fp, "%i", &nPolygons);
+  int result;
+
+  assert(fp);
+  result = fscanf(fp, "%i", &nPolygons);
+  assert(result != EOF);
   directedLine *ret = NULL;
 
   for(i=0; i<nPolygons; i++)
     {
       Int nEdges;
-      fscanf(fp, "%i", &nEdges);
+      result = fscanf(fp, "%i", &nEdges);
+      assert(result != EOF);
       Real vert[2][2] = { { 0 } };
       Real VV[2][2];
       /*the first two vertices*/
-      fscanf(fp, "%f", &(vert[0][0]));
-      fscanf(fp, "%f", &(vert[0][1]));
-      fscanf(fp, "%f", &(vert[1][0]));
-      fscanf(fp, "%f", &(vert[1][1]));
+      result = fscanf(fp, "%f", &(vert[0][0]));
+      assert(result != EOF);
+      result = fscanf(fp, "%f", &(vert[0][1]));
+      assert(result != EOF);
+      result = fscanf(fp, "%f", &(vert[1][0]));
+      assert(result != EOF);
+      result = fscanf(fp, "%f", &(vert[1][1]));
+      assert(result != EOF);
       VV[1][0] = vert[0][0];
       VV[1][1] = vert[0][1];
       sampledLine *sLine = new sampledLine(2, vert);
@@ -820,8 +828,10 @@ thisPoly->rootLinkSet(NULL);
        {
          vert[0][0]=vert[1][0];
          vert[0][1]=vert[1][1];
-         fscanf(fp, "%f", &(vert[1][0]));
-         fscanf(fp, "%f", &(vert[1][1]));
+         result = fscanf(fp, "%f", &(vert[1][0]));
+         assert(result != EOF);
+         result = fscanf(fp, "%f", &(vert[1][1]));
+         assert(result != EOF);
          sLine = new sampledLine(2,vert);
          dLine = new directedLine(INCREASING, sLine);
 dLine->rootLinkSet(thisPoly);