Build and Test w.r.t CXX since there is no BUILD file at the top level

Author: srvasude

.github/workflows/continuous-integration.yml

@@ -17,7 +17,7 @@ jobs:
           sudo apt-get update && sudo apt-get install -yq clang clang-format
       - name: Build everything
         run: |
-          bazel build //...
+          cd cxx && bazel build ...
       - name: Test C++
         run: |
-          bazel test //...
+          cd cxx && bazel test ...

cxx/tests/test_hirm_animals.cc

@@ -36,7 +36,7 @@ int main(int argc, char **argv) {
             n_obs_unary += relation->data.size();
         }
     }
-    assert(n_obs_unary == observations_unary.size());
+    assert(n_obs_unary == std::ssize(observations_unary));
 
     hirm.transition_cluster_assignments_all();
     hirm.transition_cluster_assignments_all();