diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/common/include/gudhi/distance_functions.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/common/include/gudhi/distance_functions.h b/src/common/include/gudhi/distance_functions.h index 5891ef0e..7bf97c23 100644 --- a/src/common/include/gudhi/distance_functions.h +++ b/src/common/include/gudhi/distance_functions.h @@ -24,6 +24,8 @@ #define DISTANCE_FUNCTIONS_H_ #include <cmath> // for std::sqrt +#include <type_traits> // for std::decay +#include <iterator> // for std::begin, std::end /** @file * @brief Global distance functions @@ -34,7 +36,7 @@ class Euclidean_distance { public: template< typename Point > - auto operator()(const Point& p1, const Point& p2) -> typename std::decay<decltype(*std::begin(p1))>::type { + auto operator()(const Point& p1, const Point& p2) const -> typename std::decay<decltype(*std::begin(p1))>::type { auto it1 = p1.begin(); auto it2 = p2.begin(); typename Point::value_type dist = 0.; |