message: Add return value to functions
diff: @@ -47,7 +47,7 @@ Node *Node::minimum(Node *node) {
  }
  default:
  assert(0);
  - break;
  + return nullptr;
  }
  }
  @@ -71,6 +71,7 @@ Node **Node::findChild(const uint8_t k, Node *node) {
  }
  default:
  assert(0);
  + return nullptr;
  }
  }
  