+struct pivot_value_ex *
+pivot_value_ex_clone (const struct pivot_value_ex *old)
+{
+ struct font_style *font_style = NULL;
+ if (old->font_style)
+ {
+ font_style = xmalloc (sizeof *font_style);
+ font_style_copy (NULL, font_style, old->font_style);
+ }
+
+ char **subscripts = NULL;
+ if (old->n_subscripts)
+ {
+ subscripts = xnmalloc (old->n_subscripts, sizeof *subscripts);
+ for (size_t i = 0; i < old->n_subscripts; i++)
+ subscripts[i] = xstrdup (old->subscripts[i]);
+ }
+
+ struct pivot_value_ex *new = xmalloc (sizeof *new);
+ *new = (struct pivot_value_ex) {
+ .font_style = font_style,
+ .cell_style = (old->cell_style
+ ? xmemdup (old->cell_style, sizeof *new->cell_style)
+ : NULL),
+ .subscripts = subscripts,
+ .n_subscripts = old->n_subscripts,
+ .footnote_indexes = (
+ old->n_footnotes
+ ? xmemdup (old->footnote_indexes,
+ old->n_footnotes * sizeof *new->footnote_indexes)
+ : NULL),
+ .n_footnotes = old->n_footnotes
+ };
+ return new;
+}
+
+void
+pivot_value_ex_destroy (struct pivot_value_ex *ex)
+{
+ if (ex)
+ {
+ font_style_uninit (ex->font_style);
+ free (ex->font_style);
+ free (ex->cell_style);
+ free (ex->footnote_indexes);
+
+ for (size_t i = 0; i < ex->n_subscripts; i++)
+ free (ex->subscripts[i]);
+ free (ex->subscripts);
+ free (ex);
+ }
+}