pxd: initial work

[pspp] / src / data / missing-values.c

diff --git a/src/data/missing-values.c b/src/data/missing-values.c
index 9aba57e0e05fb6249764d2c5f778fb6337275a82..aa029a4f4d443e7f5dbd7a4ae2b8e99fedff2471 100644 (file)
--- a/src/data/missing-values.c
+++ b/src/data/missing-values.c
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2005, 2009, 2011, 2013 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2009, 2011-2015 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
@@ -24,6 +24,7 @@
 #include "data/variable.h"
 #include "libpspp/assertion.h"
 #include "libpspp/cast.h"
+#include "libpspp/pxd.h"
 #include "libpspp/str.h"
 
 /* Types of user-missing values.
@@ -470,3 +471,40 @@ mv_is_str_missing (const struct missing_values *mv, const uint8_t s[],
   assert (mv->width > 0);
   return class & MV_USER && is_str_user_missing (mv, s);
 }
+
+struct pxd_object *
+mv_save (const struct missing_values *mv, struct pxd *pxd)
+{
+  struct pxd_builder b;
+  int i;
+
+  pxd_builder_init (&b, pxd);
+
+  pxd_builder_put_u16 (&b, mv->width);
+  pxd_builder_put_u16 (&b, mv->type);
+  for (i = 0; i < 3; i++)
+    if (using_element (mv->type, i))
+      pxd_builder_put_value (&b, &mv->values[i], mv->width);
+
+  return pxd_builder_commit (&b);
+}
+
+void
+mv_load (struct missing_values *mv, struct pxd_object *object,
+         const struct pxd *pxd)
+{
+  struct pxd_parser p;
+  int i;
+
+  pxd_parser_init (&p, object, pxd);
+
+  mv->width = pxd_parser_get_u16 (&p);
+  mv->type = pxd_parser_get_u16 (&p);
+  for (i = 0; i < 3; i++)
+    if (using_element (mv->type, i))
+      pxd_parser_get_value (&p, &mv->values[i], mv->width);
+    else
+      value_init (&mv->values[i], mv->width);
+
+  pxd_parser_destroy (&p);
+}