X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Flinreg.h;h=e53a02956e2077e91f58ede8268ed68ab71fd60d;hb=33790599fcfd2de8553568801791b78704aae4de;hp=32373f5ed484eceab55fc4b1df8cf019d03860cf;hpb=fe8dc2171009e90d2335f159d05f7e6660e24780;p=pspp

diff --git a/src/math/linreg.h b/src/math/linreg.h
index 32373f5ed4..e53a02956e 100644
--- a/src/math/linreg.h
+++ b/src/math/linreg.h
@@ -90,6 +90,7 @@ typedef struct pspp_linreg_opts_struct pspp_linreg_opts;
 
 struct linreg_struct
 {
+  int refcnt;
   double n_obs;			/* Number of observations. */
   int n_indeps;			/* Number of independent variables. */
   int n_coeffs;                 /* The intercept is not considered a
@@ -153,7 +154,8 @@ typedef struct linreg_struct linreg;
 linreg *linreg_alloc (const struct variable *, const struct variable **, 
 		      double, size_t);
 
-bool linreg_free (void *);
+void linreg_unref (linreg *);
+void linreg_ref (linreg *c);
 
 /*
   Fit the linear model via least squares. All pointers passed to pspp_linreg