Change how checking for missing values works.

[pspp] / src / math / interaction.c

diff --git a/src/math/interaction.c b/src/math/interaction.c
index 5dfabe99dd6c0e1ee3aba9d95626cabdf7b6babd..e61ab14e915565c284564e3359c6d15f09c13581 100644 (file)
--- a/src/math/interaction.c
+++ b/src/math/interaction.c
@@ -35,7 +35,7 @@ interaction_create (const struct variable *v)
   struct interaction *iact = xmalloc (sizeof *iact);
   iact->vars = xmalloc (sizeof *iact->vars);
   iact->n_vars = 0;
-  if ( v )
+  if (v)
     {
       iact->vars[0] = v;
       iact->n_vars = 1;
@@ -137,7 +137,7 @@ interaction_to_string (const struct interaction *iact, struct string *str)
     {
       ds_put_cstr (str, var_to_string (iact->vars[v]));
       if (v + 1 < iact->n_vars)
-        ds_put_cstr (str, " * ");
+        ds_put_cstr (str, " × ");
     }
 }
 
@@ -199,8 +199,8 @@ interaction_case_is_missing (const struct interaction *iact,
                              const struct ccase *c, enum mv_class exclude)
 {
   for (size_t i = 0; i < iact->n_vars; ++i)
-    if (var_is_value_missing (iact->vars[i], case_data (c, iact->vars[i]),
-                              exclude))
+    if (var_is_value_missing (iact->vars[i], case_data (c, iact->vars[i]))
+        & exclude)
       return true;
 
   return false;