From bf4b4eeda9762ed9e99c2b24f19331fa0111fcfe Mon Sep 17 00:00:00 2001
From: ROUVREAU Vincent <vincent.rouvreau@inria.fr>
Date: Mon, 27 Jan 2020 10:43:16 +0100
Subject: Code review: Use std::clog instead of std::cout

---
 .../average_landscapes_on_grid.cpp                             |  6 +++---
 .../compute_distance_of_landscapes_on_grid.cpp                 | 10 +++++-----
 .../compute_scalar_product_of_landscapes_on_grid.cpp           | 10 +++++-----
 .../create_landscapes_on_grid.cpp                              |  6 +++---
 .../persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp |  4 ++--
 5 files changed, 18 insertions(+), 18 deletions(-)

(limited to 'src/Persistence_representations/utilities/persistence_landscapes_on_grid')

diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp
index f92cde72..39f7a67f 100644
--- a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp
@@ -16,12 +16,12 @@
 using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
 
 int main(int argc, char** argv) {
-  std::cout << "This program computes average of persistence landscapes on grid stored in files (the files needs to "
+  std::clog << "This program computes average of persistence landscapes on grid stored in files (the files needs to "
             << "be created beforehand).\n"
             << "The parameters of this programs are names of files with persistence landscapes on grid.\n";
 
   if (argc < 3) {
-    std::cout << "Wrong number of parameters, the program will now terminate \n";
+    std::clog << "Wrong number of parameters, the program will now terminate \n";
     return 1;
   }
 
@@ -46,6 +46,6 @@ int main(int argc, char** argv) {
     delete lands[i];
   }
 
-  std::cout << "Average can be found in 'average.g_land' file\n";
+  std::clog << "Average can be found in 'average.g_land' file\n";
   return 0;
 }
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp
index baec6aeb..01fd09d8 100644
--- a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp
@@ -18,14 +18,14 @@
 using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
 
 int main(int argc, char** argv) {
-  std::cout << "This program computes distance of persistence landscapes on grid stored in files (the files needs to "
+  std::clog << "This program computes distance of persistence landscapes on grid stored in files (the files needs to "
             << "be created beforehand).\n"
             << "The first parameter of a program is an integer p. The program compute L^p distance of the two heat "
             << "maps. For L^infty distance choose p = -1. \n"
             << "The remaining parameters of this program are names of files with persistence landscapes on grid.\n";
 
   if (argc < 3) {
-    std::cout << "Wrong number of parameters, the program will now terminate \n";
+    std::clog << "Wrong number of parameters, the program will now terminate \n";
     return 1;
   }
 
@@ -68,14 +68,14 @@ int main(int argc, char** argv) {
   out.open("distance.g_land");
   for (size_t i = 0; i != distance.size(); ++i) {
     for (size_t j = 0; j != distance.size(); ++j) {
-      std::cout << distance[i][j] << " ";
+      std::clog << distance[i][j] << " ";
       out << distance[i][j] << " ";
     }
-    std::cout << std::endl;
+    std::clog << std::endl;
     out << std::endl;
   }
   out.close();
 
-  std::cout << "Distance can be found in 'distance.g_land' file\n";
+  std::clog << "Distance can be found in 'distance.g_land' file\n";
   return 0;
 }
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp
index e94dacdb..71c2f419 100644
--- a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp
@@ -17,13 +17,13 @@
 using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
 
 int main(int argc, char** argv) {
-  std::cout
+  std::clog
       << "This program computes scalar product of persistence landscapes on grid stored in a file (the file needs to "
       << "be created beforehand). \n"
       << "The parameters of this programs are names of files with persistence landscapes on grid.\n";
 
   if (argc < 3) {
-    std::cout << "Wrong number of parameters, the program will now terminate \n";
+    std::clog << "Wrong number of parameters, the program will now terminate \n";
     return 1;
   }
 
@@ -60,14 +60,14 @@ int main(int argc, char** argv) {
   out.open("scalar_product.g_land");
   for (size_t i = 0; i != scalar_product.size(); ++i) {
     for (size_t j = 0; j != scalar_product.size(); ++j) {
-      std::cout << scalar_product[i][j] << " ";
+      std::clog << scalar_product[i][j] << " ";
       out << scalar_product[i][j] << " ";
     }
-    std::cout << std::endl;
+    std::clog << std::endl;
     out << std::endl;
   }
   out.close();
 
-  std::cout << "Distance can be found in 'scalar_product.g_land' file\n";
+  std::clog << "Distance can be found in 'scalar_product.g_land' file\n";
   return 0;
 }
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp
index d510c3df..788313c4 100644
--- a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp
@@ -18,7 +18,7 @@
 using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
 
 int main(int argc, char** argv) {
-  std::cout << "This program creates persistence landscapes on grid files (*.g_land) of persistence diagrams files "
+  std::clog << "This program creates persistence landscapes on grid files (*.g_land) of persistence diagrams files "
             << "(*.pers) provided as an input.\n"
             << "The first parameter of a program is an integer, a size of a grid.\n"
             << "The second and third parameters are min and max of the grid. If you want those numbers to be computed "
@@ -32,7 +32,7 @@ int main(int argc, char** argv) {
             << "The remaining parameters are the names of files with persistence diagrams. \n";
 
   if (argc < 6) {
-    std::cout << "Wrong parameter list, the program will now terminate \n";
+    std::clog << "Wrong parameter list, the program will now terminate \n";
     return 1;
   }
 
@@ -51,7 +51,7 @@ int main(int argc, char** argv) {
   }
 
   for (size_t i = 0; i != filenames.size(); ++i) {
-    std::cout << "Creating persistence landscape on a grid based on a file : " << filenames[i] << std::endl;
+    std::clog << "Creating persistence landscape on a grid based on a file : " << filenames[i] << std::endl;
     Persistence_landscape_on_grid l;
     if ((min_ != -1) || (max_ != -1)) {
       l = Persistence_landscape_on_grid(filenames[i], min_, max_, size_of_grid, dimension);
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp
index 4e20f37f..ec6112b5 100644
--- a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp
@@ -16,11 +16,11 @@
 using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
 
 int main(int argc, char** argv) {
-  std::cout << "This program creates a gnuplot script from a persistence landscape on grid stored in a file (the file "
+  std::clog << "This program creates a gnuplot script from a persistence landscape on grid stored in a file (the file "
             << "needs to be created beforehand). Please call the code with the name of a single landscape on grid file"
             << ".\n";
   if (argc != 2) {
-    std::cout << "Wrong parameter list, the program will now terminate \n";
+    std::clog << "Wrong parameter list, the program will now terminate \n";
     return 1;
   }
 
-- 
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