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-rw-r--r--src/Bitmap_cubical_complex/example/Bitmap_cubical_complex_periodic_boundary_conditions.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/Bitmap_cubical_complex/example/Bitmap_cubical_complex_periodic_boundary_conditions.cpp b/src/Bitmap_cubical_complex/example/Bitmap_cubical_complex_periodic_boundary_conditions.cpp
index f8754345..122160a2 100644
--- a/src/Bitmap_cubical_complex/example/Bitmap_cubical_complex_periodic_boundary_conditions.cpp
+++ b/src/Bitmap_cubical_complex/example/Bitmap_cubical_complex_periodic_boundary_conditions.cpp
@@ -30,6 +30,7 @@
#include <iostream>
#include <sstream>
#include <vector>
+#include <string>
int main(int argc, char** argv) {
std::cout << "This program computes persistent homology, by using " <<