Fix cpplint and cppcheck

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/persistence_representation_integration@2480 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 9ad6fc7b096fff02a8696515c074ddd92980a8e2

1 files changed, 2 insertions, 2 deletions

diff --git a/src/common/include/gudhi/distance_functions.h b/src/common/include/gudhi/distance_functions.h
index f683136b..e52fc611 100644
--- a/src/common/include/gudhi/distance_functions.h
+++ b/src/common/include/gudhi/distance_functions.h
@@ -26,6 +26,7 @@
 #include <cmath>  // for std::sqrt
 #include <type_traits>  // for std::decay
 #include <iterator>  // for std::begin, std::end
+#include <utility>
 
 namespace Gudhi {
 
@@ -49,8 +50,7 @@ class Euclidean_distance {
     return std::sqrt(dist);
   }
   template< typename T >
-  T operator() ( const std::pair< T,T >& f , const std::pair< T,T >& s )
-  {
+  T operator() ( const std::pair< T, T >& f , const std::pair< T, T >& s ) {
     return  sqrt( (f.first-s.first)*(f.first-s.first) + (f.second-s.second)*(f.second-s.second) );
   }
 };