- bool *model_dropped = xcalloc (covariance_dim (cov), sizeof (*model_dropped));
- bool *submodel_dropped = xcalloc (covariance_dim (cov), sizeof (*submodel_dropped));
+ bool *model_dropped = XCALLOC (covariance_dim (cov), bool);
+ bool *submodel_dropped = XCALLOC (covariance_dim (cov), bool);