diff --git a/c++/itertools/itertools.cpp b/c++/itertools/itertools.cpp
deleted file mode 100644
index 66af718..0000000
--- a/c++/itertools/itertools.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <cmath>
-#include "./itertools.hpp"
-
-namespace itertools {
-
-  toto &toto::operator+=(toto const &b) {
-    this->i += b.i;
-    return *this;
-  }
-
-  toto toto::operator+(toto const &b) const {
-    auto res = *this;
-    res += b;
-    return res;
-  }
-
-  bool toto::operator==(toto const &b) const { return (this->i == b.i); }
-
-  void h5_write(h5::group grp, std::string subgroup_name, toto const &m) {
-    grp = subgroup_name.empty() ? grp : grp.create_group(subgroup_name);
-    h5_write(grp, "i", m.i);
-    h5_write_attribute(grp, "Format", toto::hdf5_format());
-  }
-
-  void h5_read(h5::group grp, std::string subgroup_name, toto &m) {
-    grp = subgroup_name.empty() ? grp : grp.open_group(subgroup_name);
-    int i;
-    h5_read(grp, "i", i);
-    m = toto(i);
-  }
-
-  int chain(int i, int j) {
-    int n_digits_j = j > 0 ? (int)log10(j) + 1 : 1;
-    return i * int(pow(10, n_digits_j)) + j;
-  }
-
-} // namespace itertools