From 0dbb54551e80326e768e7b113039bc94e301ecb6 Mon Sep 17 00:00:00 2001
From: Andreas Fabri <andreas.fabri@geometryfactory.com>
Date: Wed, 24 Feb 2016 17:03:59 +0100
Subject: [PATCH] std::to_string comes only with C++11

---
 Cone_spanners_2/examples/Cone_spanners_2/theta_io.cpp  | 3 ++-
 Cone_spanners_2/test/Cone_spanners_2/theta_exact.cpp   | 3 ++-
 Cone_spanners_2/test/Cone_spanners_2/theta_inexact.cpp | 3 ++-
 Cone_spanners_2/test/Cone_spanners_2/yao_inexact.cpp   | 3 ++-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/Cone_spanners_2/examples/Cone_spanners_2/theta_io.cpp b/Cone_spanners_2/examples/Cone_spanners_2/theta_io.cpp
index 58a7a660305..7fd94f8309e 100644
--- a/Cone_spanners_2/examples/Cone_spanners_2/theta_io.cpp
+++ b/Cone_spanners_2/examples/Cone_spanners_2/theta_io.cpp
@@ -10,6 +10,7 @@
 #include <iterator>
 #include <string>
 #include <vector>
+#include <boost/lexical_cast.hpp>
 #include <boost/graph/adjacency_list.hpp>
 #include <CGAL/Exact_predicates_exact_constructions_kernel_with_root_of.h>
 #include <CGAL/Construct_theta_graph_2.h>
@@ -70,7 +71,7 @@ int main(int argc, char ** argv)
   // obtain the number of vertices in the constructed graph
   unsigned int n = boost::num_vertices(g);
   // generate gnuplot files for plotting this graph
-  std::string file_prefix = "t" + std::to_string(k) + "n" + std::to_string(n);
+  std::string file_prefix = "t" + boost::lexical_cast<std::string>(k) + "n" + boost::lexical_cast<std::string>(n);
   CGAL::gnuplot_output_2(g, file_prefix);
 
   return 0;
diff --git a/Cone_spanners_2/test/Cone_spanners_2/theta_exact.cpp b/Cone_spanners_2/test/Cone_spanners_2/theta_exact.cpp
index 6ea6692e34d..ced8e6ab2e3 100644
--- a/Cone_spanners_2/test/Cone_spanners_2/theta_exact.cpp
+++ b/Cone_spanners_2/test/Cone_spanners_2/theta_exact.cpp
@@ -10,6 +10,7 @@
 #include <iterator>
 #include <string>
 #include <vector>
+#include <boost/lexical_cast.hpp>
 #include <boost/graph/adjacency_list.hpp>
 #include <CGAL/Exact_predicates_exact_constructions_kernel_with_root_of.h>
 #include <CGAL/Construct_theta_graph_2.h>
@@ -70,7 +71,7 @@ int main(int argc, char ** argv)
   // obtain the number of vertices in the constructed graph
   unsigned int n = boost::num_vertices(g);
   // generate gnuplot files for plotting this graph
-  std::string file_prefix = "t" + std::to_string(k) + "n" + std::to_string(n);
+  std::string file_prefix = "t" + boost::lexical_cast<std::string>(k) + "n" + boost::lexical_cast<std::string>(n);
   CGAL::gnuplot_output_2(g, file_prefix);
 
   return 0;
diff --git a/Cone_spanners_2/test/Cone_spanners_2/theta_inexact.cpp b/Cone_spanners_2/test/Cone_spanners_2/theta_inexact.cpp
index d71a6e7f50b..f2d045ac860 100644
--- a/Cone_spanners_2/test/Cone_spanners_2/theta_inexact.cpp
+++ b/Cone_spanners_2/test/Cone_spanners_2/theta_inexact.cpp
@@ -11,6 +11,7 @@
 #include <iterator>
 #include <string>
 #include <vector>
+#include <boost/lexical_cast.hpp>
 #include <boost/graph/adjacency_list.hpp>
 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
 #include <CGAL/Construct_theta_graph_2.h>
@@ -71,7 +72,7 @@ int main(int argc, char ** argv)
   // obtain the number of vertices in the constructed graph
   unsigned int n = boost::num_vertices(g);
   // generate gnuplot files for plotting this graph
-  std::string file_prefix = "t" + std::to_string(k) + "n" + std::to_string(n);
+  std::string file_prefix = "t" + boost::lexical_cast<std::string>(k) + "n" + boost::lexical_cast<std::string>(n);
   CGAL::gnuplot_output_2(g, file_prefix);
 
   return 0;
diff --git a/Cone_spanners_2/test/Cone_spanners_2/yao_inexact.cpp b/Cone_spanners_2/test/Cone_spanners_2/yao_inexact.cpp
index ae6e8b6df24..d4bde8f6e7d 100644
--- a/Cone_spanners_2/test/Cone_spanners_2/yao_inexact.cpp
+++ b/Cone_spanners_2/test/Cone_spanners_2/yao_inexact.cpp
@@ -12,6 +12,7 @@
 #include <iterator>
 #include <string>
 #include <vector>
+#include <boost/lexical_cast.hpp>
 #include <boost/graph/adjacency_list.hpp>
 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
 #include <CGAL/Construct_yao_graph_2.h>
@@ -72,7 +73,7 @@ int main(int argc, char ** argv)
   unsigned int n = boost::num_vertices(g);
 
   // generate gnuplot files for plotting this graph
-  std::string fileprefix = "y" + std::to_string(k) + "n" + std::to_string(n);
+  std::string fileprefix = "y" + boost::lexical_cast<std::string>(k) + "n" + boost::lexical_cast<std::string>(n);
   CGAL::gnuplot_output_2(g, fileprefix);
 
   return 0;