Change how checking for missing values works.

[pspp] / src / data / variable.h

diff --git a/src/data/variable.h b/src/data/variable.h
index 6347d8173cd38356a3b4ee6796dfab3db701b409..2fa68667869d23c2f479c46b51d4b2b1e6954693 100644 (file)
--- a/src/data/variable.h
+++ b/src/data/variable.h
@@ -1,5 +1,6 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2009, 2010, 2011, 2012, 2013,
+   2014, 2020 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -50,7 +51,8 @@ union value;
    instead. */
 struct variable *var_create (const char *name, int width);
 struct variable *var_clone (const struct variable *);
-void var_destroy (struct variable *);
+struct variable * var_ref (struct variable *) WARN_UNUSED_RESULT;
+void var_unref (struct variable *);
 
 /* Variable names. */
 const char *var_get_name (const struct variable *);
@@ -83,10 +85,9 @@ void var_set_missing_values (struct variable *, const struct missing_values *);
 void var_clear_missing_values (struct variable *);
 bool var_has_missing_values (const struct variable *);
 
-bool var_is_value_missing (const struct variable *, const union value *,
-                           enum mv_class);
-bool var_is_num_missing (const struct variable *, double, enum mv_class);
-bool var_is_str_missing (const struct variable *, const uint8_t[], enum mv_class);
+enum mv_class var_is_value_missing (const struct variable *, const union value *);
+enum mv_class var_is_num_missing (const struct variable *, double);
+enum mv_class var_is_str_missing (const struct variable *, const uint8_t[]);
 
 /* Value labels. */
 const char *var_lookup_value_label (const struct variable *,
@@ -189,7 +190,7 @@ void var_set_leave (struct variable *, bool leave);
 bool var_must_leave (const struct variable *);
 
 /* Short names. */
-size_t var_get_short_name_cnt (const struct variable *);
+size_t var_get_n_short_names (const struct variable *);
 const char *var_get_short_name (const struct variable *, size_t idx);
 void var_set_short_name (struct variable *, size_t, const char *);
 void var_clear_short_names (struct variable *);