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Diffstat (limited to 'src/common/include/gudhi/distance_functions.h')
-rw-r--r--src/common/include/gudhi/distance_functions.h4
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 e5c79ded..cd518581 100644
--- a/src/common/include/gudhi/distance_functions.h
+++ b/src/common/include/gudhi/distance_functions.h
@@ -23,6 +23,8 @@
#ifndef DISTANCE_FUNCTIONS_H_
#define DISTANCE_FUNCTIONS_H_
+#include <cmath> // for std::sqrt
+
/* Compute the Euclidean distance between two Points given
* by a range of coordinates. The points are assumed to have
* the same dimension. */
@@ -35,7 +37,7 @@ double euclidean_distance(Point &p1, Point &p2) {
double tmp = *it1 - *it2;
dist += tmp*tmp;
}
- return sqrt(dist);
+ return std::sqrt(dist);
}
#endif // DISTANCE_FUNCTIONS_H_