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-rw-r--r--src/Nerve_GIC/include/gudhi/GIC.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Nerve_GIC/include/gudhi/GIC.h b/src/Nerve_GIC/include/gudhi/GIC.h
index fc615828..2520042d 100644
--- a/src/Nerve_GIC/include/gudhi/GIC.h
+++ b/src/Nerve_GIC/include/gudhi/GIC.h
@@ -700,7 +700,7 @@ class Cover_complex {
* @result cover_back(c) vector of IDs of data points.
*
*/
- std::vector<int> subpopulation(Cover_t c){
+ const std::vector<int> & subpopulation(Cover_t c){
return cover_back[c];
}