Merge of periodic_alpha_complex_3d_persistence feature

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@1119 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 2a77050d737aa008a1bd0c71a4e4c8eb21c7fef6

1 files changed, 10 insertions, 8 deletions

diff --git a/src/common/example/CGAL_points_off_reader.cpp b/src/common/example/CGAL_points_off_reader.cpp
index 45e9f1e6..997b47c1 100644
--- a/src/common/example/CGAL_points_off_reader.cpp
+++ b/src/common/example/CGAL_points_off_reader.cpp
@@ -8,17 +8,19 @@
 #include <string>
 #include <vector>
 
-typedef CGAL::Epick_d< CGAL::Dynamic_dimension_tag > Kernel;
-typedef typename Kernel::Point_d Point_d;
+using Kernel = CGAL::Epick_d< CGAL::Dynamic_dimension_tag >;
+using Point_d = typename Kernel::Point_d;
 
-void usage(int argc, char * const progName) {
-  std::cerr << "Error: Number of arguments (" << argc << ") is not correct" << std::endl;
+void usage(char * const progName) {
   std::cerr << "Usage: " << progName << " inputFile.off" << std::endl;
   exit(-1);
 }
 
 int main(int argc, char **argv) {
-  if (argc != 2) usage(argc, (argv[0] - 1));
+  if (argc != 2) {
+    std::cerr << "Error: Number of arguments (" << argc << ") is not correct" << std::endl;
+    usage(argv[0]);
+  }
 
   std::string offInputFile(argv[1]);
   // Read the OFF file (input file name given as parameter) and triangulate points
@@ -26,16 +28,16 @@ int main(int argc, char **argv) {
   // Check the read operation was correct
   if (!off_reader.is_valid()) {
     std::cerr << "Unable to read file " << offInputFile << std::endl;
-    exit(-1);
+    usage(argv[0]);
   }
 
   // Retrieve the triangulation
   std::vector<Point_d> point_cloud = off_reader.get_point_cloud();
 
-  int n = 0;
+  int n {0};
   for (auto point : point_cloud) {
     std::cout << "Point[" << n << "] = ";
-    for (int i = 0; i < point.dimension(); i++)
+    for (int i {0}; i < point.dimension(); i++)
       std::cout << point[i] << " ";
     std::cout << "\n";
     ++n;