- if (!p_properties)
- p_properties = xbt_dict_new();
- xbt_dict_set(p_properties, key, xbt_strdup(value), &xbt_free_f);
+ if (not properties_)
+ properties_ = xbt_dict_new_homogeneous(xbt_free_f);
+ xbt_dict_set(properties_, key, xbt_strdup(value), nullptr);