Code review: Use std::clog instead of std::cout

1 files changed, 14 insertions, 14 deletions

diff --git a/src/Persistent_cohomology/example/rips_persistence_via_boundary_matrix.cpp b/src/Persistent_cohomology/example/rips_persistence_via_boundary_matrix.cpp
index 37fa5e93..db456f70 100644
--- a/src/Persistent_cohomology/example/rips_persistence_via_boundary_matrix.cpp
+++ b/src/Persistent_cohomology/example/rips_persistence_via_boundary_matrix.cpp
@@ -64,8 +64,8 @@ int main(int argc, char * argv[]) {
   Simplex_tree& st = *new Simplex_tree;
   rips_complex_from_file.create_complex(st, dim_max);
 
-  std::cout << "The complex contains " << st.num_simplices() << " simplices \n";
-  std::cout << "   and has dimension " << st.dimension() << " \n";
+  std::clog << "The complex contains " << st.num_simplices() << " simplices \n";
+  std::clog << "   and has dimension " << st.dimension() << " \n";
 
 #ifdef GUDHI_USE_TBB
   // Unnecessary, but clarifies which operations are parallel.
@@ -122,7 +122,7 @@ void program_options(int argc, char * argv[]
   visible.add_options()
       ("help,h", "produce help message")
       ("output-file,o", po::value<std::string>(&filediag)->default_value(std::string()),
-       "Name of file in which the persistence diagram is written. Default print in std::cout")
+       "Name of file in which the persistence diagram is written. Default print in std::clog")
       ("max-edge-length,r", po::value<Filtration_value>(&threshold)->default_value(0),
        "Maximal length of an edge for the Rips complex construction.")
       ("cpx-dimension,d", po::value<int>(&dim_max)->default_value(1),
@@ -144,17 +144,17 @@ void program_options(int argc, char * argv[]
   po::notify(vm);
 
   if (vm.count("help") || !vm.count("input-file")) {
-    std::cout << std::endl;
-    std::cout << "Compute the persistent homology with coefficient field Z/pZ \n";
-    std::cout << "of a Rips complex defined on a set of input points.\n \n";
-    std::cout << "The output diagram contains one bar per line, written with the convention: \n";
-    std::cout << "   p   dim b d \n";
-    std::cout << "where dim is the dimension of the homological feature,\n";
-    std::cout << "b and d are respectively the birth and death of the feature and \n";
-    std::cout << "p is the characteristic of the field Z/pZ used for homology coefficients." << std::endl << std::endl;
-
-    std::cout << "Usage: " << argv[0] << " [options] input-file" << std::endl << std::endl;
-    std::cout << visible << std::endl;
+    std::clog << std::endl;
+    std::clog << "Compute the persistent homology with coefficient field Z/pZ \n";
+    std::clog << "of a Rips complex defined on a set of input points.\n \n";
+    std::clog << "The output diagram contains one bar per line, written with the convention: \n";
+    std::clog << "   p   dim b d \n";
+    std::clog << "where dim is the dimension of the homological feature,\n";
+    std::clog << "b and d are respectively the birth and death of the feature and \n";
+    std::clog << "p is the characteristic of the field Z/pZ used for homology coefficients." << std::endl << std::endl;
+
+    std::clog << "Usage: " << argv[0] << " [options] input-file" << std::endl << std::endl;
+    std::clog << visible << std::endl;
     exit(-1);
   }
 }