fixed warnings in writeobj

Former-commit-id: 226dc70c8e3bd4244e1770284d9816737f9d036d

include/igl/writeOBJ.cpp

@@ -6,9 +6,9 @@
 
 template <typename DerivedV, typename DerivedF>
 IGL_INLINE bool igl::writeOBJ(
-                              const std::string str,
-                              const Eigen::PlainObjectBase<DerivedV>& V,
-                              const Eigen::PlainObjectBase<DerivedF>& F)
+  const std::string str,
+  const Eigen::PlainObjectBase<DerivedV>& V,
+  const Eigen::PlainObjectBase<DerivedF>& F)
 {
   std::ofstream s(str.c_str());
 
@@ -18,11 +18,15 @@ IGL_INLINE bool igl::writeOBJ(
     return false;
   }
 
-  for(int i=0;i<V.rows();++i)
-      s << "v " << V(i,0) << " " << V(i,1) << " " << V(i,2) << std::endl;
+  for(int i=0;i<(int)V.rows();++i)
+  {
+    s << "v " << V(i,0) << " " << V(i,1) << " " << V(i,2) << std::endl;
+  }
   
-  for(int i=0;i<F.rows();++i)
-      s << "f " << F(i,0)+1 << " " << F(i,1)+1 << " " << F(i,2)+1 << std::endl;
+  for(int i=0;i<(int)F.rows();++i)
+  {
+    s << "f " << F(i,0)+1 << " " << F(i,1)+1 << " " << F(i,2)+1 << std::endl;
+  }
   
   s.close();
   return true;
@@ -30,13 +34,13 @@ IGL_INLINE bool igl::writeOBJ(
 
 template <typename DerivedV, typename DerivedF, typename DerivedT>
 IGL_INLINE bool igl::writeOBJ(
-                         const std::string str,
-                         const Eigen::PlainObjectBase<DerivedV>& V,
-                         const Eigen::PlainObjectBase<DerivedF>& F,
-                         const Eigen::PlainObjectBase<DerivedV>& CN,
-                         const Eigen::PlainObjectBase<DerivedF>& FN,
-                         const Eigen::PlainObjectBase<DerivedT>& TC,
-                         const Eigen::PlainObjectBase<DerivedF>& FTC)
+  const std::string str,
+  const Eigen::PlainObjectBase<DerivedV>& V,
+  const Eigen::PlainObjectBase<DerivedF>& F,
+  const Eigen::PlainObjectBase<DerivedV>& CN,
+  const Eigen::PlainObjectBase<DerivedF>& FN,
+  const Eigen::PlainObjectBase<DerivedT>& TC,
+  const Eigen::PlainObjectBase<DerivedF>& FTC)
 {
   FILE * obj_file = fopen(str.c_str(),"w");
   if(NULL==obj_file)
@@ -45,19 +49,19 @@ IGL_INLINE bool igl::writeOBJ(
     return false;                                              
   }
   // Loop over V
-  for(unsigned i = 0;i<V.rows();i++)
+  for(int i = 0;i<(int)V.rows();i++)
   {
     fprintf(obj_file,"v %0.15g %0.15g %0.15g\n",
-            V(i,0),
-            V(i,1),
-            V(i,2)
-            );
+      V(i,0),
+      V(i,1),
+      V(i,2)
+      );
   }
   bool write_N = CN.rows() >0;
   
   if(write_N)
   {
-    for(unsigned i = 0;i<CN.rows();i++)
+    for(int i = 0;i<(int)CN.rows();i++)
     {
       fprintf(obj_file,"v %0.15g %0.15g %0.15g\n",
               CN(i,0),
@@ -72,7 +76,7 @@ IGL_INLINE bool igl::writeOBJ(
   
   if(write_texture_coords)
   {
-    for(unsigned i = 0;i<TC.rows();i++)
+    for(int i = 0;i<(int)TC.rows();i++)
     {
       fprintf(obj_file, "vt %0.15g %0.15g\n",TC(i,0),1-TC(i,1));
     }
@@ -80,10 +84,10 @@ IGL_INLINE bool igl::writeOBJ(
   }
   
   // loop over F
-  for(unsigned i = 0;i<F.rows();++i)
+  for(int i = 0;i<(int)F.rows();++i)
   {
     fprintf(obj_file,"f");
-    for(unsigned j = 0; j<F.cols();++j)
+    for(int j = 0; j<(int)F.cols();++j)
     {
       // OBJ is 1-indexed
       fprintf(obj_file," %u",F(i,j)+1);